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Cheap flights from Keflavik Intl (KEF) to St. Louis (STL) from $399

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 7/18. 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.
KEF — STL
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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When is the cheapest time to fly from Reykjavik Keflavik Intl Airport to St. Louis (KEF - STL)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Reykjavik Keflavik Intl Airport to St. Louis as you normally would.

Cheap Lufthansa flights from Keflavik Intl to St. Louis

Explore cheap flight options specifically provided by Lufthansa for the route between Keflavik Intl and St. Louis. 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 2,637,452 searches. Data last updated May 16, 2024.
Check out some of the cheapest Lufthansa flights we've come across from Reykjavik to St. Louis. It's recommended that users confirm their flight details before booking.
Thu 9/52:00 pmKEF - STL
1 stop28h 30mLufthansa
Mon 9/912:55 pmSTL - KEF
2 stops19h 00mLufthansa
Deal found 5/15$1,036
Thu 9/52:00 pmKEF - STL
1 stop28h 30mLufthansa
Mon 9/912:15 pmSTL - KEF
2 stops19h 40mLufthansa
Deal found 5/14$1,156

Cheap United Airlines flights from Keflavik Intl to St. Louis

Explore cheap flight options specifically provided by United Airlines for the route between Keflavik Intl and St. Louis. 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 2,637,452 searches. Data last updated May 16, 2024.
Browse through some of the cheapest United Airlines flights traveling from Reykjavik to St. Louis. Deals frequently update to provide users with more options.
Thu 9/511:00 amKEF - STL
1 stop10h 05mUnited Airlines
Mon 9/95:20 pmSTL - KEF
1 stop10h 10mUnited Airlines
Deal found 5/14$1,563
Thu 9/511:00 amKEF - STL
1 stop10h 05mUnited Airlines
Mon 9/912:55 pmSTL - KEF
1 stop14h 35mUnited Airlines
Deal found 5/15$1,575

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

Find cheap flight options from Keflavik Intl to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
These are some of the most attractive deals on flights from Reykjavik to St. Louis in 2024. Check back regularly for other flight deals.
Wed 6/1211:25 amKEF - STL
2 stops17h 18mMultiple Airlines
Mon 6/172:16 pmSTL - KEF
1 stop11h 04mMultiple Airlines
Deal found 5/15$764
Tue 6/1112:10 amKEF - STL
2 stops25h 55mMultiple Airlines
Mon 6/1711:00 amSTL - KEF
1 stop16h 35mMultiple Airlines
Deal found 5/15$961
Tue 6/1112:10 amKEF - STL
2 stops25h 55mMultiple Airlines
Mon 6/171:10 pmSTL - KEF
2 stops14h 25mMultiple Airlines
Deal found 5/15$965
Wed 6/1210:00 amKEF - STL
3 stops16h 47mMultiple Airlines
Mon 6/171:10 pmSTL - KEF
2 stops14h 25mMultiple Airlines
Deal found 5/15$1,290
Wed 6/1211:05 amKEF - STL
3 stops26h 28mAmerican Airlines
Mon 6/175:15 amSTL - KEF
3 stops23h 05mAmerican Airlines
Deal found 5/15$3,359
Tue 6/1112:10 amKEF - STL
3 stops25h 55mMultiple Airlines
Mon 6/1711:00 amSTL - KEF
3 stops21h 45mMultiple Airlines
Deal found 5/15$3,591

Keflavik Intl to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Keflavik Intl and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
These are some of the most attractive deals on flights from Reykjavik to St. Louis in 2024. Check back regularly for other flight deals.
Wed 6/1211:25 amKEF - STL
2 stops17h 18mMultiple Airlines
Mon 6/172:16 pmSTL - KEF
1 stop11h 04mMultiple Airlines
Deal found 5/15$764
Thu 9/511:25 amKEF - STL
2 stops36h 49mVirgin Atlantic
Mon 9/97:15 pmSTL - KEF
2 stops33h 15mVirgin Atlantic
Deal found 5/14$785
Tue 6/1112:10 amKEF - STL
2 stops25h 55mMultiple Airlines
Mon 6/1711:00 amSTL - KEF
1 stop16h 35mMultiple Airlines
Deal found 5/15$961
Tue 6/1112:10 amKEF - STL
2 stops25h 55mMultiple Airlines
Mon 6/171:10 pmSTL - KEF
2 stops14h 25mMultiple Airlines
Deal found 5/15$965
Thu 9/52:00 pmKEF - STL
1 stop28h 30mLufthansa
Mon 9/912:55 pmSTL - KEF
2 stops19h 00mLufthansa
Deal found 5/15$1,036
Thu 9/52:00 pmKEF - STL
1 stop28h 30mLufthansa
Mon 9/912:15 pmSTL - KEF
2 stops19h 40mLufthansa
Deal found 5/14$1,156
Wed 6/1210:00 amKEF - STL
3 stops16h 47mMultiple Airlines
Mon 6/171:10 pmSTL - KEF
2 stops14h 25mMultiple Airlines
Deal found 5/15$1,290
Thu 9/511:00 amKEF - STL
1 stop10h 05mUnited Airlines
Mon 9/95:20 pmSTL - KEF
1 stop10h 10mUnited Airlines
Deal found 5/14$1,563
Thu 9/511:00 amKEF - STL
1 stop10h 05mUnited Airlines
Mon 9/912:55 pmSTL - KEF
1 stop14h 35mUnited Airlines
Deal found 5/15$1,575

One-way flights to St. Louis from Keflavik Intl

Search for one-way flight options from Keflavik Intl to St. Louis. 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 2,637,452 searches. Data last updated May 16, 2024.
Users traveling one-way from Reykjavik to St. Louis can select one of these great deals. Those seeking round-trip flights from Reykjavik to St. Louis should utilize the search form at the the top of the page.
Thu 7/183:50 pmKEF - STL
2 stops27h 39mMultiple Airlines
Deal found 5/15$399
Thu 7/184:45 pmKEF - STL
1 stop26h 44mMultiple Airlines
Deal found 5/15$542
Mon 7/224:25 pmKEF - STL
2 stops19h 40mMultiple Airlines
Deal found 5/15$551
Wed 7/107:35 pmKEF - STL
2 stops21h 30mMultiple Airlines
Deal found 5/14$554
Wed 7/1010:25 amKEF - STL
1 stop33h 28mMultiple Airlines
Deal found 5/14$555
Fri 7/194:25 pmKEF - STL
2 stops24h 20mMultiple Airlines
Deal found 5/15$570
Wed 7/174:25 pmKEF - STL
2 stops24h 40mMultiple Airlines
Deal found 5/15$581
Sat 7/204:25 pmKEF - STL
2 stops24h 20mMultiple Airlines
Deal found 5/15$600
Sat 7/204:45 pmKEF - STL
1 stop29h 17mMultiple Airlines
Deal found 5/15$623

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

Customize your flight search to find flights from Keflavik Intl to St. Louis 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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$764 - $1,575

Route

Depart

Return

Price

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Wed 6/12

2 stops17h 18m

Lambert-St Louis

Mon 6/17

1 stop11h 04m

$764

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Thu 9/5

2 stops36h 49m

Lambert-St Louis

Mon 9/9

2 stops33h 15m

$785

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Tue 6/11

2 stops25h 55m

Lambert-St Louis

Mon 6/17

1 stop16h 35m

$961

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Tue 6/11

2 stops25h 55m

Lambert-St Louis

Mon 6/17

2 stops14h 25m

$965

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Thu 9/5

1 stop28h 30m

Lambert-St Louis

Mon 9/9

2 stops19h 00m

$1,036

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Thu 9/5

1 stop28h 30m

Lambert-St Louis

Mon 9/9

2 stops19h 40m

$1,156

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Wed 6/12

3 stops16h 47m

Lambert-St Louis

Mon 6/17

2 stops14h 25m

$1,290

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Thu 9/5

1 stop10h 05m

Lambert-St Louis

Mon 9/9

1 stop10h 10m

$1,563

Reykjavik Keflavik IntlLambert-St Louis

KEF - STL

KEFSTL

Reykjavik Keflavik Intl

Thu 9/5

1 stop10h 05m

Lambert-St Louis

Mon 9/9

1 stop14h 35m

$1,575

Flights are sorted by cheapest first

Deals found on 5/15

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated May 16, 2024.
Peruse reviews from past customers who have flown with Lufthansa and United Airlines from Reykjavik to St. Louis to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.9
Good
1,568 reviews
Check prices

Crew

8.4

Boarding

7.8

Comfort

7.6

Overall

7.9

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

KLM
7.9
Good
1,568 reviews
KLM
7.9
Good
1,568 reviews
Check prices

Crew

8.4

Boarding

7.8

Comfort

7.6

Overall

7.9

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Virgin Atlantic
7.7
Good
735 reviews
KLM
7.9
Good
1,568 reviews
Check prices

Crew

8.4

Boarding

7.8

Comfort

7.6

Overall

7.9

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Austrian Airlines
7.7
Good
1,053 reviews
KLM
7.9
Good
1,568 reviews
Check prices

Crew

8.4

Boarding

7.8

Comfort

7.6

Overall

7.9

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Air France
7.6
Good
1,764 reviews
KLM
7.9
Good
1,568 reviews
Check prices

Crew

8.4

Boarding

7.8

Comfort

7.6

Overall

7.9

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

United Airlines
7.4
Good
10,924 reviews
KLM
7.9
Good
1,568 reviews
Check prices

Crew

8.4

Boarding

7.8

Comfort

7.6

Overall

7.9

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Departure was late. Plane much too small for an 11 hour flight. One bathroom was out of order in a completely full flight.

Related info for your journey

Find useful and relevant information for your journey from Keflavik Intl to St. Louis. 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 into for flights to St. Louis from Reykjavik Keflavik Intl?

    If you book a flight to St. Louis from Reykjavik Keflavik Intl, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 0 flights from Reykjavik Keflavik Intl to Lambert-St Louis per day from 0 different airlines.

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

    Yes, there are multiple flights from Reykjavik Keflavik Intl Airport to St. Louis for under $800. The cheapest flight booked recently is on Multiple Airlines for just $764, but on average you can expect to pay $1,549.

  • What are the cheapest airlines to fly from Reykjavik Keflavik Intl Airport to St. Louis one-way?

    For one-way options, check prices for Air France. According to our data, you can fly for as low as $750. Users have also found prices from $751 and $1,073 on KLM and American Airlines, respectively.

  • What does KEF to STL mean?

    Reykjavik Keflavik Intl Airport is KEF and Lambert-St Louis Airport is STL. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

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

    The amount of baggage you can bring on your Keflavik Intl to St. Louis 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 Keflavik Intl to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Keflavik Intl to St. Louis 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 Keflavik Intl to St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Keflavik Intl to St. Louis 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 Keflavik Intl to St. Louis that allow pets onboard?

    Many airlines flying from Keflavik Intl to St. Louis 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 Keflavik Intl to St. Louis?

    Yes, you can often find last-minute deals on Keflavik Intl to St. Louis 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 Reykjavik Keflavik Intl Airport to St. Louis flight deals updated?

    The Reykjavik Keflavik Intl Airport to St. Louis flight deals you see on this page were last updated on 5/15.

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Search flights from Keflavik Intl to St. Louis by cabin class

Find flights from Keflavik Intl to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Business Class
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Keflavik Intl to St. Louis?

Deals for Keflavik Intl to St. Louis flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights simply makes it quick and affordable to book flights from Keflavik Intl to St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Certainly. Search results for flights to St. Louis from Keflavik Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to St. Louis from Keflavik Intl today and book when prices fit your budget.

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