$181 Cheap Flights from Bellingham (BLI) to Idaho Falls (IDA)

View $181 flight on Sat, Nov 22, 2025Opens in a new window

Popular airlines from Bellingham, WA (BLI-Bellingham Intl.) to Idaho Falls Regional Airport (IDA)

Cheap Flights from Bellingham to Idaho Falls (BLI-IDA)

Prices were available within the past 7 days and start at $181 for one-way flights and $282 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Wed, Dec 24 - Sat, Jan 10
BLI
Bellingham
IDA
Idaho Falls
$282 Roundtrip, found 2 days ago
$282
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 24 from Bellingham to Idaho Falls, returning Sat, Jan 10, priced at $282 found 2 days ago
Hawaiian Airlines
Sat, Jan 10 - Sat, Jan 24
BLI
Bellingham
IDA
Idaho Falls
$283 Roundtrip, found 3 days ago
$283
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Sat, Jan 10 from Bellingham to Idaho Falls, returning Sat, Jan 24, priced at $283 found 3 days ago
Hawaiian Airlines
Wed, Dec 24 - Fri, Jan 9
BLI
Bellingham
IDA
Idaho Falls
$292 Roundtrip, found 2 days ago
$292
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 24 from Bellingham to Idaho Falls, returning Fri, Jan 9, priced at $292 found 2 days ago
Hawaiian Airlines
Wed, Dec 24 - Sun, Jan 11
BLI
Bellingham
IDA
Idaho Falls
$293 Roundtrip, found 2 days ago
$293
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 24 from Bellingham to Idaho Falls, returning Sun, Jan 11, priced at $293 found 2 days ago
Hawaiian Airlines
Tue, Jan 6 - Fri, Jan 23
BLI
Bellingham
IDA
Idaho Falls
$302 Roundtrip, found 3 days ago
$302
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Tue, Jan 6 from Bellingham to Idaho Falls, returning Fri, Jan 23, priced at $302 found 3 days ago
Hawaiian Airlines
Tue, Jan 6 - Thu, Jan 22
BLI
Bellingham
IDA
Idaho Falls
$303 Roundtrip, found 3 days ago
$303
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Tue, Jan 6 from Bellingham to Idaho Falls, returning Thu, Jan 22, priced at $303 found 3 days ago
Hawaiian Airlines
Tue, Dec 30 - Sat, Jan 10
BLI
Bellingham
IDA
Idaho Falls
$313 Roundtrip, found 3 days ago
$313
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Tue, Dec 30 from Bellingham to Idaho Falls, returning Sat, Jan 10, priced at $313 found 3 days ago
Hawaiian Airlines
Tue, Dec 30 - Fri, Jan 9
BLI
Bellingham
IDA
Idaho Falls
$323 Roundtrip, found 3 days ago
$323
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Tue, Dec 30 from Bellingham to Idaho Falls, returning Fri, Jan 9, priced at $323 found 3 days ago
Hawaiian Airlines
Wed, Dec 24 - Mon, Jan 5
BLI
Bellingham
IDA
Idaho Falls
$333 Roundtrip, found 2 days ago
$333
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 24 from Bellingham to Idaho Falls, returning Mon, Jan 5, priced at $333 found 2 days ago
Alaska Airlines
Wed, Dec 3 - Mon, Dec 15
BLI
Bellingham
IDA
Idaho Falls
$355 Roundtrip, found 3 days ago
$355
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Dec 3 from Bellingham to Idaho Falls, returning Mon, Dec 15, priced at $355 found 3 days ago

Alternative airports near Idaho Falls

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Idaho Falls Regional IDA. Cheapest and Closest option available. Average driving time to city center is 5 minutes. Flights from $472
IDA
Idaho Falls Regional
CheapestClosest
Average driving time to city center5 min
Flights from $472
Flights from Bellingham (BLI) to Idaho Falls (IDA)
Origin airport
Bellingham Intl.
Destination airport
Idaho Falls Regional
Airlines serving
Alaska Airlines
Roundtrip price
$282
Distance
618 mi

Bellingham to Idaho Falls Flights

The cheapest times to fly from Bellingham to Idaho Falls

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Bellingham to Idaho Falls are during the month of December. You can find some of the cheapest flights from Bellingham to Idaho Falls with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Bellingham to Idaho Falls

Sunday is one of the best days to book for cheap flights from Bellingham to Idaho Falls: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Bellingham to Idaho Falls

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Bellingham to Idaho Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $181 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Bellingham to Idaho Falls flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Bellingham to Idaho Falls airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Bellingham Intl. Airport (BLI) to Idaho Falls Regional Airport (IDA) cost?
Secure a cheap one-way flight from $181 or cheap return flight from $282 from Bellingham Intl. Airport (BLI) to Idaho Falls Regional Airport (IDA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Bellingham Intl. Airport (BLI) to Idaho Falls Regional Airport (IDA)?
The cheapest month to fly from BLI to IDA is December, when there's less demand. Off-peak months are usually when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Bellingham Intl. Airport (BLI) to Idaho Falls Regional Airport (IDA)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from BLI to IDA. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Bellingham Intl. Airport (BLI) to Idaho Falls Regional Airport (IDA)?
You'll need to book a flight with a layover if you're traveling from Bellingham Intl. Airport (BLI) to Idaho Falls Regional Airport (IDA). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from BLI to IDA?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Bellingham Intl. Airport (BLI) to Idaho Falls Regional Airport (IDA)?
To arrive at Idaho Falls Regional Airport (IDA) without delays, choose a flight that leaves Bellingham Intl. Airport (BLI) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Bellingham Intl. Airport (BLI) to Idaho Falls Regional Airport (IDA) last-minute?
Last-minute bookings from BLI to IDA are typically more expensive. To lock in the lowest rates, start searching for flights well ahead of time. That being said, if you can play around with your travel dates, you may score a cheap fare just before your departure.
Is it cheaper to book a BLI to IDA flight and hotel package?
You'll generally save money by securing a BLI to IDA flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've chosen your ideal accommodations and flights, you can add extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Bellingham Intl. Airport (BLI) to Idaho Falls Regional Airport (IDA)?
In most instances, you're able to reschedule or cancel your BLI to IDA flight. However, there may be additional charges, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you want more details, head to our Customer Service portal.

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Idaho Falls nearby Airports

Pocatello

Bellingham to Pocatello Regional
$1,466.76
*Available to One Key members.