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$151+ Cheap flights from Bellingham (BLI) to Idaho

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
BLI — BOI
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Bellingham to Idaho

Keep the following information in mind while searching for Bellingham to Idaho flight deals. Data was last updated August 20, 2025.

Round-trip from

$252
(Alaska Airlines)

One-way from

$151
(Trip.com)

Popular in

March

Cheapest in

February

Average price

$676
From Bellingham to Idaho
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One-way flight from Bellingham to Idaho
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Highest demand for flights based on searches. 8% potential increase in price ($49 potential increase over avg. RT price).
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Cheapest flight prices on average. 12% potential price decrease ($57 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Bellingham to Idaho

Cheapest flights from Bellingham to Idaho
Explore the most affordable flight options available from Bellingham to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This Alaska Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/123:47 pmBLI - GEG
1 stop20h 59mAlaska Airlines
Sat 9/137:44 pmGEG - BLI
1 stop4h 27mAlaska Airlines
Deal found 8/19$252
This Alaska Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/31:08 pmBLI - GEG
1 stop20h 24mAlaska Airlines
Sun 10/127:34 pmGEG - BLI
1 stop4h 32mAlaska Airlines
Deal found 8/18$282
This Alaska Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/193:47 pmBLI - GEG
1 stop20h 59mAlaska Airlines
Sat 9/205:53 pmGEG - BLI
1 stop6h 18mAlaska Airlines
Deal found 8/19$293
This Kiwi.com deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/258:30 amBLI - GEG
1 stop11h 46mAllegiant Air
Fri 10/36:38 pmGEG - BLI
1 stop19h 29mAllegiant Air
Deal found 8/19$311
This Alaska Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/193:47 pmBLI - GEG
1 stop20h 59mAlaska Airlines
Mon 9/227:44 pmGEG - BLI
1 stop4h 27mAlaska Airlines
Deal found 8/20$323
This Hawaiian Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/132:33 pmBLI - GEG
1 stop4h 32mHawaiian Airlines
Sat 1/310:17 amGEG - BLI
1 stop5h 09mHawaiian Airlines
Deal found 8/19$359
This Alaska Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/184:06 pmBLI - GEG
1 stop2h 54mAlaska Airlines
Mon 12/297:42 pmGEG - BLI
1 stop4h 34mAlaska Airlines
Deal found 8/19$368
This Kiwi.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/218:00 amBLI - GEG
1 stop12h 16mAllegiant Air
Thu 9/259:06 pmGEG - BLI
1 stop11h 56mAllegiant Air
Deal found 8/17$379
This Hawaiian Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/58:02 amBLI - GEG
1 stop4h 44mHawaiian Airlines
Tue 9/97:44 pmGEG - BLI
1 stop4h 27mHawaiian Airlines
Deal found 8/19$397

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bellingham 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 2,558,603 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from Bellingham to Idaho that are best for you.

Fly from

Bellingham

Fly to

Idaho

Route

Depart

Return

Price

BellinghamSpokane

BLI - GEG

BLIGEG

Bellingham

Fri 9/12

3:47 pm-12:46 pm

1 stop20h 59m

Spokane

Sat 9/13

7:44 pm-12:11 am

1 stop4h 27m

$252

BellinghamSpokane

BLI - GEG

BLIGEG

Bellingham

Fri 10/3

1:08 pm-9:32 am

1 stop20h 24m

Spokane

Sun 10/12

7:34 pm-12:06 am

1 stop4h 32m

$282

BellinghamSpokane

BLI - GEG

BLIGEG

Bellingham

Fri 9/19

3:47 pm-12:46 pm

1 stop20h 59m

Spokane

Tue 9/23

8:51 pm-12:11 am

1 stop3h 20m

$293

BellinghamSpokane

BLI - GEG

BLIGEG

Bellingham

Fri 9/19

3:47 pm-12:46 pm

1 stop20h 59m

Spokane

Sat 9/20

5:53 pm-12:11 am

1 stop6h 18m

$293

BellinghamSpokane

BLI - GEG

BLIGEG

Bellingham

Thu 9/25

8:30 am-8:16 pm

1 stop11h 46m

Spokane

Fri 10/3

6:38 pm-2:07 pm

1 stop19h 29m

$311

BellinghamSpokane

BLI - GEG

BLIGEG

Bellingham

Fri 9/19

3:47 pm-12:46 pm

1 stop20h 59m

Spokane

Mon 9/22

7:44 pm-12:11 am

1 stop4h 27m

$323

BellinghamSpokane

BLI - GEG

BLIGEG

Bellingham

Sat 12/13

2:33 pm-7:05 pm

1 stop4h 32m

Spokane

Sat 1/3

10:17 am-3:26 pm

1 stop5h 09m

$359

BellinghamSpokane

BLI - GEG

BLIGEG

Bellingham

Mon 12/15

4:18 pm-12:39 pm

1 stop20h 21m

Spokane

Sun 1/4

9:12 pm-12:16 am

1 stop3h 04m

$359

BellinghamSpokane

BLI - GEG

BLIGEG

Bellingham

Thu 12/18

4:06 pm-7:00 pm

1 stop2h 54m

Spokane

Mon 12/29

7:42 pm-12:16 am

1 stop4h 34m

$368

BellinghamSpokane

BLI - GEG

BLIGEG

Bellingham

Sun 9/21

8:00 am-8:16 pm

1 stop12h 16m

Spokane

Thu 9/25

9:06 pm-9:02 am

1 stop11h 56m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 18 results
1
2

Best time to book a flight from Bellingham to Idaho

Have a flexible travel schedule? Discover the best time to fly to Idaho from Bellingham with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bellingham to Idaho

What is the cheapest month to book a flight from Bellingham to Idaho?

Currently, October is the cheapest month in which you can book a flight from Bellingham to Idaho (average of $314). Flying from Bellingham to Idaho in June is currently the most expensive (average of $399). 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.

What is the cheapest time of day to fly from BLI to ID?

Find hourly flight availability from Bellingham to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

When flying from Bellingham to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 August 20, 2025.
See what other customers who have flown with Alaska Airlines from Bellingham to Idaho have to say. 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

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

    If you book a flight to Idaho from Bellingham, you will be flying from Bellingham, which is the city’s only airport. Bellingham (BLI) is located 3.2 mi from the center of Bellingham.

  • How long is the flight from Bellingham to Idaho?

    Alaska Airlines and Allegiant Air can get you from Bellingham to Idaho in just under 11h 46m. Your travel time can differ by up to 9h 13m. Bellingham and Idaho are separated by a distance of 244 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    To fly one-way, consider booking your trip with Allegiant Air, which is currently one of the cheapest options available, starting at $151. Hawaiian Airlines flights start at $174 while deals on Alaska Airlines start at $177 one-way.

  • Can I find deals for flights from Bellingham to Idaho that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Bellingham 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.

  • What is the cheapest month to book a flight from Bellingham to Idaho?

    Currently, October is the cheapest month in which you can book a flight from Bellingham to Idaho (average of $314). Flying from Bellingham to Idaho in June is currently the most expensive (average of $399). 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.

See more FAQs

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Top airline flying from Bellingham to Idaho

Discover the top airline that operate flights from Bellingham 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 2,558,603 searches. Data last updated August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$263Average$448FlexibilityNo cancel feeOn-time75%

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