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Cheap flights from St. Louis (STL) to Keflavik Intl (KEF) from $338

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — KEF
May 8 — May 151
From?
To?
Wed 5/8
Wed 5/15
1 adult, Economy
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Cheap flight deals from St. Louis to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Keflavik Intl (KEF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 3, 2024.

Popular in

May

Cheapest in

January

Average price

$1,250

Round-trip from

$336
High demand for flights, 21% potential price rise
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Best time to find cheap flights, 30% potential price drop
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Average for round-trip flights in May 2024
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From Lambert-St Louis to Reykjavik Keflavik Intl
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What is the cheapest day to fly round-trip from St. Louis to Reykjavik Keflavik Intl Airport?

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 55% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from St. Louis to Reykjavik Keflavik Intl Airport?

Find a great deal and save up to 39% by booking at least 46 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from St. Louis to Reykjavik Keflavik Intl Airport within the next two weeks, with the cheapest ticket starting at $1,033.

What is the cheapest month to fly from St. Louis to Reykjavik Keflavik Intl Airport?

The best pricing can be found in the month of November. Prices to Reykjavik Keflavik Intl Airport from St. Louis average $1,095. You can even find prices in November for less than $1,095, as users have found deals to Reykjavik Keflavik Intl Airport from as low as $319. The month of March appears to be one of the more expensive times to travel to Reykjavik Keflavik Intl Airport from St. Louis. Flying in the targeted month can save you up to 27%.

When is the cheapest time to fly from St. Louis to Reykjavik Keflavik Intl Airport (STL - KEF)?

When flying from St. Louis to Reykjavik Keflavik Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 11% versus a flight at noon.

Cheap Delta flights from St. Louis to Keflavik Intl

Explore cheap flight options specifically provided by Delta for the route between St. Louis and Keflavik Intl. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 3, 2024.
Take a peek at the cheapest Delta flights we've detected traveling from St. Louis to Reykjavik. Be sure to come back soon if the deals available don't appeal to you at this time.
Tue 7/93:24 pmSTL - KEF
1 stop10h 36mDelta
Tue 7/168:50 amKEF - STL
1 stop13h 30mDelta
Deal found 5/2$746
Tue 7/910:55 amSTL - KEF
2 stops15h 05mDelta
Tue 7/168:50 amKEF - STL
2 stops14h 14mDelta
Deal found 5/2$750
Fri 6/76:06 amSTL - KEF
1 stop19h 54mDelta
Tue 6/189:30 amKEF - STL
1 stop12h 31mDelta
Deal found 5/2$950
Thu 7/410:05 amSTL - KEF
1 stop15h 55mDelta
Sun 7/149:30 amKEF - STL
1 stop17h 06mDelta
Deal found 5/2$991
Thu 7/410:05 amSTL - KEF
2 stops15h 11mDelta
Sat 7/139:30 amKEF - STL
1 stop17h 06mDelta
Deal found 5/2$995

Cheap Air Canada flights from St. Louis to Keflavik Intl

Explore cheap flight options specifically provided by Air Canada for the route between St. Louis and Keflavik Intl. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 3, 2024.
To aid your search, here are some of the cheapest Air Canada flights we've found from St. Louis to Reykjavik. Deals are refreshing constantly so come back soon for more options.
Thu 7/1112:00 pmSTL - KEF
1 stop15h 35mAir Canada
Thu 7/1810:00 amKEF - STL
2 stops34h 21mAir Canada
Deal found 5/1$787
Thu 7/1110:10 amSTL - KEF
2 stops17h 25mAir Canada
Thu 7/1810:00 amKEF - STL
2 stops34h 21mAir Canada
Deal found 5/1$793
Fri 6/711:00 amSTL - KEF
1 stop16h 35mAir Canada
Tue 6/1810:00 amKEF - STL
2 stops34h 21mAir Canada
Deal found 5/2$932
Thu 6/134:05 pmSTL - KEF
2 stops35h 30mAir Canada
Fri 6/2810:00 amKEF - STL
1 stop10h 21mAir Canada
Deal found 5/2$938
Sat 6/85:31 pmSTL - KEF
2 stops34h 04mAir Canada
Sun 6/1610:00 amKEF - STL
2 stops34h 41mAir Canada
Deal found 5/2$946
Sat 6/85:31 pmSTL - KEF
2 stops34h 04mAir Canada
Sun 6/1610:00 amKEF - STL
1 stop16h 05mAir Canada
Deal found 5/3$964
Sat 6/811:00 amSTL - KEF
1 stop16h 35mAir Canada
Sun 6/1610:00 amKEF - STL
1 stop16h 05mAir Canada
Deal found 5/2$976
Sat 6/19:50 amSTL - KEF
2 stops17h 45mAir Canada
Sat 6/810:00 amKEF - STL
1 stop16h 05mAir Canada
Deal found 5/2$982
Sat 6/111:00 amSTL - KEF
2 stops16h 35mAir Canada
Sat 6/810:00 amKEF - STL
2 stops15h 01mAir Canada
Deal found 5/2$988

Cheap St. Louis to Keflavik Intl flights in May & June 2024

Find cheap flight options from St. Louis to Keflavik Intl specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,899,487 searches. Prices were last updated on May 3, 2024.
These are some of the most attractive deals on flights from St. Louis to Reykjavik in 2024. Check back soon for alternative fares.
Fri 6/711:00 amSTL - KEF
1 stop16h 35mAir Canada
Tue 6/1810:00 amKEF - STL
2 stops34h 21mAir Canada
Deal found 5/2$932
Thu 6/1310:50 amSTL - KEF
1 stop15h 10mMultiple Airlines
Fri 6/2810:00 amKEF - STL
1 stop10h 21mMultiple Airlines
Deal found 5/2$937
Thu 6/134:05 pmSTL - KEF
2 stops35h 30mAir Canada
Fri 6/2810:00 amKEF - STL
1 stop10h 21mAir Canada
Deal found 5/2$938
Sat 6/84:45 pmSTL - KEF
2 stops34h 45mUnited Airlines
Sun 6/1612:00 pmKEF - STL
1 stop14h 47mUnited Airlines
Deal found 5/2$945
Fri 6/75:31 pmSTL - KEF
2 stops34h 04mAir Canada
Tue 6/1810:00 amKEF - STL
2 stops34h 41mAir Canada
Deal found 5/2$946
Fri 6/76:06 amSTL - KEF
1 stop19h 54mDelta
Tue 6/189:30 amKEF - STL
1 stop12h 31mDelta
Deal found 5/2$950
Sat 6/111:00 amSTL - KEF
1 stop16h 35mAir Canada
Sat 6/810:00 amKEF - STL
1 stop16h 05mAir Canada
Deal found 5/2$976
Sat 6/19:50 amSTL - KEF
2 stops17h 45mAir Canada
Sat 6/810:00 amKEF - STL
1 stop16h 05mAir Canada
Deal found 5/2$982
Sat 6/111:00 amSTL - KEF
2 stops16h 35mAir Canada
Sat 6/810:00 amKEF - STL
2 stops15h 01mAir Canada
Deal found 5/2$988

St. Louis to Keflavik Intl 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Keflavik Intl in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 3, 2024.
These are some of the most attractive deals on flights from St. Louis to Reykjavik in 2024. Check back soon for alternative fares.
Mon 10/1410:10 amSTL - KEF
1 stop15h 10mDelta
Mon 10/218:50 amKEF - STL
1 stop16h 41mDelta
Deal found 5/2$640
Mon 10/142:05 pmSTL - KEF
1 stop11h 15mDelta
Mon 10/218:50 amKEF - STL
2 stops29h 01mDelta
Deal found 5/2$645
Sun 9/110:10 amSTL - KEF
1 stop15h 10mAir France
Sun 9/88:50 amKEF - STL
1 stop13h 37mAir France
Deal found 5/2$651
Sun 9/18:00 amSTL - KEF
2 stops17h 20mDelta
Sun 9/88:50 amKEF - STL
1 stop13h 37mDelta
Deal found 5/2$655
Mon 10/1410:10 amSTL - KEF
2 stops32h 10mMultiple Airlines
Sun 10/2012:25 amKEF - STL
2 stops43h 55mMultiple Airlines
Deal found 5/2$686
Sun 9/18:00 amSTL - KEF
2 stops17h 20mDelta
Sun 9/88:50 amKEF - STL
2 stops19h 49mDelta
Deal found 5/2$705
Thu 10/1010:10 amSTL - KEF
2 stops32h 10mMultiple Airlines
Sun 10/2012:25 amKEF - STL
2 stops43h 55mMultiple Airlines
Deal found 5/2$736
Tue 7/93:24 pmSTL - KEF
1 stop10h 36mDelta
Tue 7/168:50 amKEF - STL
1 stop13h 30mDelta
Deal found 5/2$746
Tue 7/910:55 amSTL - KEF
2 stops15h 05mDelta
Tue 7/168:50 amKEF - STL
2 stops14h 14mDelta
Deal found 5/2$750

One-way flights to Keflavik Intl from St. Louis

Search for one-way flight options from St. Louis to Keflavik Intl. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 3, 2024.
Users traveling one-way from St. Louis to Reykjavik can select one of these great deals. Those seeking round-trip flights from St. Louis to Reykjavik should utilize the search form at the the top of the page.
Sun 7/146:41 pmSTL - KEF
2 stops29h 14mMultiple Airlines
Deal found 5/2$338
Mon 7/1510:18 amSTL - KEF
1 stop15h 42mDelta
Deal found 5/2$374
Sat 7/135:25 pmSTL - KEF
2 stops31h 55mDelta
Deal found 5/2$392
Thu 7/1810:30 amSTL - KEF
2 stops14h 50mDelta
Deal found 5/2$424
Fri 7/126:10 pmSTL - KEF
1 stop31h 10mDelta
Deal found 5/2$436
Fri 7/127:06 pmSTL - KEF
2 stops30h 14mDelta
Deal found 5/2$443

Find flights from St. Louis to Keflavik Intl within your budget

Customize your flight search to find flights from St. Louis to Keflavik Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 3, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$746 - $1,462

Route

Depart

Return

Price

Lambert-St LouisReykjavik Keflavik Intl

STL - KEF

STLKEF

Lambert-St Louis

Tue 7/9

1 stop10h 36m

Reykjavik Keflavik Intl

Tue 7/16

1 stop13h 30m

$746

Lambert-St LouisReykjavik Keflavik Intl

STL - KEF

STLKEF

Lambert-St Louis

Tue 7/9

2 stops15h 05m

Reykjavik Keflavik Intl

Tue 7/16

2 stops14h 14m

$750

Lambert-St LouisReykjavik Keflavik Intl

STL - KEF

STLKEF

Lambert-St Louis

Sat 7/27

1 stop31h 56m

Reykjavik Keflavik Intl

Sun 8/4

2 stops34h 21m

$781

Lambert-St LouisReykjavik Keflavik Intl

STL - KEF

STLKEF

Lambert-St Louis

Thu 7/11

1 stop15h 35m

Reykjavik Keflavik Intl

Thu 7/18

2 stops34h 21m

$787

Lambert-St LouisReykjavik Keflavik Intl

STL - KEF

STLKEF

Lambert-St Louis

Thu 7/11

2 stops17h 25m

Reykjavik Keflavik Intl

Thu 7/18

2 stops34h 21m

$793

Lambert-St LouisReykjavik Keflavik Intl

STL - KEF

STLKEF

Lambert-St Louis

Thu 7/11

1 stop14h 25m

Reykjavik Keflavik Intl

Thu 7/18

1 stop12h 34m

$796

Lambert-St LouisReykjavik Keflavik Intl

STL - KEF

STLKEF

Lambert-St Louis

Sat 6/8

2 stops34h 45m

Reykjavik Keflavik Intl

Sun 6/16

1 stop14h 47m

$945

Lambert-St LouisReykjavik Keflavik Intl

STL - KEF

STLKEF

Lambert-St Louis

Mon 5/6

2 stops14h 03m

Reykjavik Keflavik Intl

Sat 5/11

2 stops26h 29m

$1,076

Lambert-St LouisReykjavik Keflavik Intl

STL - KEF

STLKEF

Lambert-St Louis

Thu 7/4

2 stops30h 55m

Reykjavik Keflavik Intl

Fri 7/12

2 stops27h 35m

$1,462

Flights are sorted by cheapest first

Deals found on 5/2

When is the best time to book a flight from St. Louis to Reykjavik Keflavik Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Keflavik Intl. Price data was last updated on January 28, 2024.
To ensure you get the cheapest price possible for a flight from St. Louis to Reykjavik Keflavik Intl Airport, you should look to book at least 77 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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When is the cheapest time to fly from St. Louis to Reykjavik Keflavik Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Keflavik Intl. Price data was last updated on April 28, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Reykjavik Keflavik Intl Airport flight should consider departing on Sunday afternoons when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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Average price of flights to Keflavik Intl by month

Plan your trip from St. Louis to Keflavik Intl by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Keflavik Intl is currently $401 while a round-trip flight costs $904. Price data was last updated on April 28, 2024.

Currently, January is the cheapest month in which you can book a flight from St. Louis to Reykjavik Keflavik Intl Airport (average of $339). Flying from St. Louis to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $742). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$339

February

$393

March

$460

April

$519

May

$534

June

$687

July

$742

August

$670

September

$697

October

$498

November

$368

December

$406

Temperature and rainfall in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average temperature and rainfall totals by month.

KEF

Temperature

32 - 51.8 °F

Reviews of airlines servicing Keflavik Intl

Get insights into the airlines that provide service to Keflavik Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Keflavik Intl. Reviews last updated May 3, 2024.
To help decide which airline to fly from St. Louis to Reykjavik, see what other customers have to say about Delta, Air Canada and Air France. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,848 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.1
Very good
10,848 reviews
Delta
8.1
Very good
10,848 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.9
Good
1,604 reviews
Delta
8.1
Very good
10,848 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Austrian Airlines
7.7
Good
1,077 reviews
Delta
8.1
Very good
10,848 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air France
7.6
Good
1,790 reviews
Delta
8.1
Very good
10,848 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

American Airlines
7.3
Good
14,755 reviews
Delta
8.1
Very good
10,848 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.1

Entertainment

8.0

Food

7.4

Comfort

7.9

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Keflavik Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Reykjavik Keflavik Intl?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to Reykjavik Keflavik Intl from St. Louis. Booking flights from Lambert-St Louis (STL) to Reykjavik Keflavik Intl should be relatively easy as there are 0 daily outbound flights to Reykjavik Keflavik Intl from 4 different airlines.

  • Can I find flights from St. Louis to Reykjavik Keflavik Intl Airport for under $800 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Reykjavik Keflavik Intl Airport for under $800. The cheapest flight booked recently is on Delta for just $746, but on average you can expect to pay $886.

  • What are the cheapest airlines flying from St. Louis to Reykjavik Keflavik Intl Airport round-trip?

    Our cheapest airline available from St. Louis to Reykjavik Keflavik Intl Airport is Delta. Our recent data shows that you can find tickets from as low as $746 on this airline. Additional options worth looking into are Air Canada and Air France, starting at $787 and $796 round-trip. Delta is 24% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most popular airlines that fly from St. Louis to Reykjavik Keflavik Intl Airport?

    Before booking your flight from St. Louis to Reykjavik Keflavik Intl Airport check out the most popular airlines for this route: Air Canada, British Airways or Delta.

  • What does STL to KEF mean?

    STL stands for Lambert-St Louis Airport, while KEF stands for Reykjavik Keflavik Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

  • Can I find deals for flights from St. Louis to Keflavik Intl that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Keflavik Intl flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Keflavik Intl with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Keflavik Intl flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Keflavik Intl that include hotel bookings?

    Yes. In addition to deals on St. Louis to Keflavik Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Keflavik Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Keflavik Intl.

  • Can I find deals for business class flights from St. Louis to Keflavik Intl?

    Yes. Cheapflights offers flight deals from St. Louis to Keflavik Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to Keflavik Intl that allow pets onboard?

    Many airlines flying from St. Louis to Keflavik Intl offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Keflavik Intl?

    Yes, you can often find last-minute deals on St. Louis to Keflavik Intl flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Reykjavik Keflavik Intl Airport flight deals updated?

    The St. Louis to Reykjavik Keflavik Intl Airport flight deals you see on this page were last updated on 5/2.

See more FAQs

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Alternative routes for St. Louis to Keflavik Intl
See prices for flight routes from nearby airports that may be better suited for you.

Kansas City to Keflavik Intl flights
Springfield to Keflavik Intl flights

Top 4 airlines flying from St. Louis to Keflavik Intl

Discover the top 4 airlines that operate flights from St. Louis to Keflavik Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,899,487 searches. Data last updated May 3, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$690Average$1,058FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest$695Average$757FlexibilityNo cancel feeOn-time70%
Search British Airways flights
DeltaCheapest$724Average$1,012FlexibilityNo cancel feeOn-timeN/A
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United AirlinesCheapest$813Average$1,202FlexibilityNo cancel feeOn-time69%
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Search flights from St. Louis to Keflavik Intl by cabin class

Find flights from St. Louis to Keflavik Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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How does Cheapflights help users find flights from St. Louis to Keflavik Intl?

When you search for this flight from St. Louis to Keflavik Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Keflavik Intl?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from St. Louis to Keflavik Intl.

Can Cheapflights find flights from St. Louis to Keflavik Intl with no change fees?

Need flexible booking options for your flight to Keflavik Intl from St. Louis? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from St. Louis to Keflavik Intl become cheaper?

Of course! You can now track prices for flights from St. Louis to Keflavik Intl and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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