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Cheap flights from Ontario (ONT) to Idaho from $118

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 6/4. 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.
ONT — BOI
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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How far in advance should I book a flight from Ontario to Idaho?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 60 days in advance, which can save you up to 185% on flights from Ontario to Idaho compared to booking the week you need them. Waiting 60 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $262. For sooner than that we have options available in the next 3 days from $472.

What is the cheapest month to fly from Ontario to Idaho?

Flights from Ontario to Idaho lean towards being more expensive in December. Prices are generally better when you fly from Ontario to Idaho in September, with the cheapest ticket starting at $89.

When is the cheapest time to fly from Ontario to Idaho (ONT - ID)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Idaho as you normally would.

Cheap Delta flights from Ontario to Idaho

Explore cheap flight options specifically provided by Delta for the route between Ontario and Idaho. 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.
Consider these cheap Delta flights we've found departing from Ontario to Idaho. It's recommended that users confirm their flight details before booking.
Tue 6/42:13 pmONT - BOI
1 stop5h 18mDelta
Wed 6/55:59 pmBOI - ONT
1 stop6h 44mDelta
Deal found 5/15$241
Tue 8/61:42 pmONT - BOI
1 stop4h 13mDelta
Wed 8/145:59 pmBOI - ONT
1 stop6h 45mDelta
Deal found 5/14$246
Tue 8/61:42 pmONT - BOI
1 stop4h 13mDelta
Mon 8/125:59 pmBOI - ONT
1 stop6h 45mDelta
Deal found 5/14$265
Tue 6/257:00 amONT - GEG
1 stop4h 45mDelta
Tue 7/26:12 amGEG - ONT
1 stop4h 51mDelta
Deal found 5/16$266
Tue 11/125:40 pmONT - BOI
1 stop5h 19mDelta
Thu 11/147:59 pmBOI - ONT
1 stop4h 52mDelta
Deal found 5/15$269
Mon 6/35:45 amONT - BOI
1 stop5h 37mDelta
Tue 6/45:59 pmBOI - ONT
1 stop6h 44mDelta
Deal found 5/14$271
Wed 5/291:20 pmONT - GEG
1 stop5h 02mDelta
Sat 6/15:10 pmGEG - ONT
1 stop4h 29mDelta
Deal found 5/15$275
Sun 6/165:35 amONT - BOI
1 stop5h 35mDelta
Mon 6/177:59 pmBOI - ONT
1 stop4h 43mDelta
Deal found 5/15$276
Thu 6/205:35 amONT - BOI
1 stop5h 35mDelta
Tue 6/255:15 pmBOI - ONT
1 stop6h 23mDelta
Deal found 5/15$280

Cheap Alaska Airlines flights from Ontario to Idaho

Explore cheap flight options specifically provided by Alaska Airlines for the route between Ontario and Idaho. 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 Alaska Airlines flights traveling from Ontario to Idaho. Deals frequently update to provide users with more options.
Mon 6/34:21 pmONT - BOI
1 stop6h 38mAlaska Airlines
Wed 6/195:20 pmBOI - ONT
1 stop7h 39mAlaska Airlines
Deal found 5/15$245
Mon 6/34:21 pmONT - GEG
1 stop5h 53mAlaska Airlines
Tue 6/41:33 pmGEG - ONT
1 stop5h 41mAlaska Airlines
Deal found 5/15$250
Mon 6/34:21 pmONT - BOI
1 stop5h 39mAlaska Airlines
Fri 6/211:00 pmBOI - ONT
1 stop7h 25mAlaska Airlines
Deal found 5/15$291
Mon 6/34:21 pmONT - BOI
1 stop6h 38mAlaska Airlines
Tue 6/47:35 amBOI - ONT
2 stops12h 39mAlaska Airlines
Deal found 5/14$294
Sun 5/266:00 amONT - BOI
1 stop7h 07mAlaska Airlines
Thu 5/305:15 pmBOI - ONT
1 stop7h 43mAlaska Airlines
Deal found 5/15$296
Sat 5/254:20 pmONT - BOI
1 stop5h 40mAlaska Airlines
Wed 5/293:02 pmBOI - ONT
1 stop5h 12mAlaska Airlines
Deal found 5/15$297
Mon 6/1010:00 amONT - BOI
1 stop7h 59mAlaska Airlines
Wed 6/125:15 pmBOI - ONT
1 stop7h 43mAlaska Airlines
Deal found 5/15$300
Sat 6/14:20 pmONT - GEG
1 stop4h 29mAlaska Airlines
Wed 6/56:15 amGEG - ONT
2 stops17h 43mAlaska Airlines
Deal found 5/15$306
Sat 6/84:20 pmONT - BOI
1 stop5h 40mAlaska Airlines
Sat 6/156:45 pmBOI - ONT
1 stop6h 14mAlaska Airlines
Deal found 5/15$307

Cheap Ontario to Idaho flights in May & June 2024

Find cheap flight options from Ontario to Idaho 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 Ontario to Idaho in 2024. Check back soon for alternative fares.
Tue 6/42:13 pmONT - BOI
1 stop5h 18mDelta
Wed 6/55:59 pmBOI - ONT
1 stop6h 44mDelta
Deal found 5/15$241
Mon 6/34:21 pmONT - BOI
1 stop6h 38mAlaska Airlines
Wed 6/195:20 pmBOI - ONT
1 stop7h 39mAlaska Airlines
Deal found 5/15$245
Mon 6/34:21 pmONT - GEG
1 stop5h 53mAlaska Airlines
Tue 6/41:33 pmGEG - ONT
1 stop5h 41mAlaska Airlines
Deal found 5/15$250
Tue 6/257:00 amONT - GEG
1 stop4h 45mDelta
Tue 7/26:12 amGEG - ONT
1 stop4h 51mDelta
Deal found 5/16$266
Mon 6/35:45 amONT - BOI
1 stop5h 37mDelta
Tue 6/45:59 pmBOI - ONT
1 stop6h 44mDelta
Deal found 5/14$271
Wed 5/291:20 pmONT - GEG
1 stop5h 02mDelta
Sat 6/15:10 pmGEG - ONT
1 stop4h 29mDelta
Deal found 5/15$275
Sun 6/165:35 amONT - BOI
1 stop5h 35mDelta
Mon 6/177:59 pmBOI - ONT
1 stop4h 43mDelta
Deal found 5/15$276
Thu 6/205:35 amONT - BOI
1 stop5h 35mDelta
Tue 6/255:15 pmBOI - ONT
1 stop6h 23mDelta
Deal found 5/15$280
Mon 6/34:21 pmONT - BOI
1 stop5h 39mAlaska Airlines
Fri 6/211:00 pmBOI - ONT
1 stop7h 25mAlaska Airlines
Deal found 5/15$291

Ontario to Idaho 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Idaho 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 Ontario to Idaho in 2024. Check back soon for alternative fares.
Tue 6/42:13 pmONT - BOI
1 stop5h 18mDelta
Wed 6/55:59 pmBOI - ONT
1 stop6h 44mDelta
Deal found 5/15$241
Mon 6/34:21 pmONT - BOI
1 stop6h 38mAlaska Airlines
Wed 6/195:20 pmBOI - ONT
1 stop7h 39mAlaska Airlines
Deal found 5/15$245
Tue 8/61:42 pmONT - BOI
1 stop4h 13mDelta
Wed 8/145:59 pmBOI - ONT
1 stop6h 45mDelta
Deal found 5/14$246
Mon 6/34:21 pmONT - GEG
1 stop5h 53mAlaska Airlines
Tue 6/41:33 pmGEG - ONT
1 stop5h 41mAlaska Airlines
Deal found 5/15$250
Tue 8/61:42 pmONT - BOI
1 stop4h 13mDelta
Mon 8/125:59 pmBOI - ONT
1 stop6h 45mDelta
Deal found 5/14$265
Wed 8/216:00 amONT - GEG
1 stop6h 35mAlaska Airlines
Sat 8/244:54 pmGEG - ONT
1 stop5h 21mAlaska Airlines
Deal found 5/16$266
Tue 11/125:40 pmONT - BOI
1 stop5h 19mDelta
Thu 11/147:59 pmBOI - ONT
1 stop4h 52mDelta
Deal found 5/15$269
Mon 6/35:45 amONT - BOI
1 stop5h 37mDelta
Tue 6/45:59 pmBOI - ONT
1 stop6h 44mDelta
Deal found 5/14$271
Wed 5/291:20 pmONT - GEG
1 stop5h 02mDelta
Sat 6/15:10 pmGEG - ONT
1 stop4h 29mDelta
Deal found 5/15$275

Ontario to Idaho flights leaving soon

Find last-minute flight options from Ontario to Idaho for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Book one of these great deals on flights from Ontario to Idaho. Users should be sure to double check the price, date, and time of their last-minute flight.
Sun 5/266:00 amONT - BOI
1 stop7h 07mAlaska Airlines
Thu 5/305:15 pmBOI - ONT
1 stop7h 43mAlaska Airlines
Deal found 5/15$296
Sat 5/254:20 pmONT - BOI
1 stop5h 40mAlaska Airlines
Wed 5/293:02 pmBOI - ONT
1 stop5h 12mAlaska Airlines
Deal found 5/15$297
Wed 5/224:21 pmONT - GEG
1 stop4h 28mAlaska Airlines
Wed 5/296:59 pmGEG - ONT
1 stop4h 59mAlaska Airlines
Deal found 5/15$320
Wed 5/224:21 pmONT - BOI
1 stop5h 39mAlaska Airlines
Tue 5/286:45 pmBOI - ONT
1 stop6h 13mAlaska Airlines
Deal found 5/15$326
Wed 5/224:21 pmONT - BOI
1 stop5h 39mAlaska Airlines
Sat 5/253:23 pmBOI - ONT
1 stop4h 51mAlaska Airlines
Deal found 5/15$351
Thu 5/236:50 amONT - GEG
1 stop4h 58mDelta
Mon 5/2710:05 amGEG - ONT
1 stop6h 31mDelta
Deal found 5/15$390
Sat 5/256:50 amONT - GEG
1 stop8h 09mDelta
Tue 5/285:42 pmGEG - ONT
1 stop4h 56mDelta
Deal found 5/15$415
Wed 5/224:21 pmONT - BOI
1 stop5h 39mAlaska Airlines
Sun 5/264:55 pmBOI - ONT
1 stop6h 00mAlaska Airlines
Deal found 5/15$436
Wed 5/226:50 amONT - BOI
1 stop6h 01mDelta
Mon 5/271:17 pmBOI - ONT
1 stop4h 19mDelta
Deal found 5/15$441

One-way flights to Idaho from Ontario

Search for one-way flight options from Ontario to Idaho. 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.
Some of the best available deals we've found on one-way flights from Ontario to Idaho. Users in need of a round-trip flight from Ontario to Idaho instead should update the search form at the top of page.
Tue 6/46:00 amONT - BOI
1 stop7h 07mAlaska Airlines
Deal found 5/15$118
Wed 7/311:43 amONT - BOI
1 stop7h 49mDelta
Deal found 5/15$123
Wed 6/126:00 amONT - BOI
1 stop7h 07mAlaska Airlines
Deal found 5/15$127
Sat 6/225:35 amONT - GEG
1 stop6h 41mDelta
Deal found 5/14$133
Sat 6/14:20 pmONT - BOI
1 stop6h 39mAlaska Airlines
Deal found 5/15$143
Thu 5/236:50 amONT - BOI
1 stop8h 16mDelta
Deal found 5/16$153
Sat 6/86:00 amONT - BOI
1 stop7h 07mAlaska Airlines
Deal found 5/15$154
Wed 5/291:29 pmONT - GEG
1 stop7h 28mUnited Airlines
Deal found 5/15$160
Sun 7/282:19 pmONT - GEG
1 stop6h 42mDelta
Deal found 5/16$163

Find flights from Ontario to Idaho within your budget

Customize your flight search to find flights from Ontario to Idaho 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

$241 - $402

Route

Depart

Return

Price

OntarioBoise Air Term. Gowen Fld

ONT - BOI

ONTBOI

Ontario

Tue 6/4

1 stop5h 18m

Boise Air Term. Gowen Fld

Wed 6/5

1 stop6h 44m

$241

OntarioBoise Air Term. Gowen Fld

ONT - BOI

ONTBOI

Ontario

Mon 6/3

1 stop6h 38m

Boise Air Term. Gowen Fld

Wed 6/19

1 stop7h 39m

$245

OntarioBoise Air Term. Gowen Fld

ONT - BOI

ONTBOI

Ontario

Tue 8/6

1 stop4h 13m

Boise Air Term. Gowen Fld

Wed 8/14

1 stop6h 45m

$246

OntarioSpokane

ONT - GEG

ONTGEG

Ontario

Mon 6/3

1 stop5h 53m

Spokane

Tue 6/4

1 stop5h 41m

$250

OntarioBoise Air Term. Gowen Fld

ONT - BOI

ONTBOI

Ontario

Tue 8/6

1 stop4h 13m

Boise Air Term. Gowen Fld

Mon 8/12

1 stop6h 45m

$265

OntarioSpokane

ONT - GEG

ONTGEG

Ontario

Tue 6/25

1 stop4h 45m

Spokane

Tue 7/2

1 stop4h 51m

$266

OntarioBoise Air Term. Gowen Fld

ONT - BOI

ONTBOI

Ontario

Mon 6/3

1 stop5h 39m

Boise Air Term. Gowen Fld

Fri 6/21

1 stop7h 25m

$291

OntarioLewiston Nez Perce Rgnl

ONT - LWS

ONTLWS

Ontario

Sat 8/24

2 stops11h 30m

Lewiston Nez Perce Rgnl

Tue 8/27

1 stop6h 57m

$313

OntarioBoise Air Term. Gowen Fld

ONT - BOI

ONTBOI

Ontario

Fri 5/31

1 stop5h 30m

Boise Air Term. Gowen Fld

Mon 6/3

1 stop6h 14m

$402

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 Idaho

Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated May 16, 2024.
Read through reviews of airlines operating flights from Ontario to Idaho, such as Delta, Alaska Airlines and American Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Crew

8.6

Food

7.3

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,157 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Crew

8.6

Food

7.3

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta
8.0
Very good
10,673 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Crew

8.6

Food

7.3

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines
7.4
Good
10,924 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Crew

8.6

Food

7.3

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

American Airlines
7.3
Good
14,514 reviews
Alaska Airlines
8.1
Very good
9,157 reviews
Check prices

Crew

8.6

Food

7.3

Overall

8.1

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Idaho. 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 Ontario to Idaho?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Idaho from Ontario.

  • Can I find flights from Ontario to Idaho for under $300 on Cheapflights?

    Yes, there are multiple flights from Ontario to Idaho for under $300. The cheapest flight booked recently is on Delta for just $241, but on average you can expect to pay $276.

  • Are there last-minute flights available from Ontario to Idaho for under $300?

    There are currently 20+ open flights from Ontario to Idaho within the next 7 days for less than $300.

  • What are the cheapest airlines to fly from Ontario to Idaho one-way?

    The cheapest airlines for a one-way flight from Ontario to Idaho are Alaska Airlines ($118), Delta ($123), and United Airlines ($160).

  • What are the most popular routes from Ontario to Idaho?

    The most popular flight routes from Ontario to Idaho are Ontario - Boise Air Term. Gowen Fld, Ontario - Jackson Hole and Ontario - Spokane.

  • What are the most popular airlines that fly from Ontario to Idaho?

    American Airlines, Alaska Airlines and Delta are the most popular airlines when flying from Ontario to Idaho.

  • What does ONT to BOI mean?

    Great question - ONT to BOI just means Ontario Airport to Boise Air Term. Gowen Fld Airport. Now you’ll know what these unique codes when you look for flights! Ready for more IATA code knowledge? These are related airports for your current travel destination: Idaho Falls Fanning Field Airport (IDA), Hailey Sun Valley-Friedman Airport (SUN), Lewiston Nez Perce Rgnl Airport (LWS), Pocatello Airport (PIH), Twin Falls Joslin Airport (TWF).

  • Can I find deals for flights from Ontario to Idaho that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Idaho 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 Ontario to Idaho with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Idaho 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 Ontario to Idaho that include hotel bookings?

    Yes. In addition to deals on Ontario to Idaho flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Idaho?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Idaho.

  • Can I find deals for business class flights from Ontario to Idaho?

    Yes. Cheapflights offers flight deals from Ontario to Idaho 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 Ontario to Idaho that allow pets onboard?

    Many airlines flying from Ontario to Idaho 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 Ontario to Idaho?

    Yes, you can often find last-minute deals on Ontario to Idaho 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 Ontario to Idaho flight deals updated?

    The Ontario to Idaho flight deals you see on this page were last updated on 5/16.

See more FAQs

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Alternative routes for Ontario to Idaho
See prices for flight routes from nearby airports that may be better suited for you.

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Top 6 airlines flying from Ontario to Idaho

Discover the top 6 airlines that operate flights from Ontario to Idaho. 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 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$82Average$170FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
Allegiant AirCheapest$142Average$195FlexibilityNo cancel feeOn-time88%
Search Allegiant Air flights
Alaska AirlinesCheapest$151Average$321FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapest$172Average$360FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$230Average$494FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$256Average$504FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
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Search flights from Ontario to Idaho by cabin class

Find flights from Ontario to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First 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 Ontario to Idaho?

When you search for this flight from Ontario to Idaho, 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 Ontario to Idaho?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Idaho from Ontario.

Can Cheapflights find flights from Ontario to Idaho with no change fees?

Certainly. Search results for flights to Idaho from Ontario 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 Ontario to Idaho become cheaper?

Yes, Cheapflights offers price alerts on Ontario to Idaho flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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