$190 Cheap Flights from St. Louis (STL) to Bellingham (BLI)

View $190 flight on Wed, Dec 24, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Bellingham, WA (BLI-Bellingham Intl.)

Cheap Flights from St. Louis to Bellingham (STL-BLI)

Prices were available within the past 7 days and start at $190 for one-way flights and $342 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Tue, Jan 20 - Tue, Jan 27
STL
St. Louis
BLI
Bellingham
$342 Roundtrip, found 2 days ago
$342
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Jan 20 from St. Louis to Bellingham, returning Tue, Jan 27, priced at $342 found 2 days ago
Alaska Airlines
Thu, Dec 4 - Wed, Dec 10
STL
St. Louis
BLI
Bellingham
$342 Roundtrip, found 8 hours ago
$342
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Thu, Dec 4 from St. Louis to Bellingham, returning Wed, Dec 10, priced at $342 found 8 hours ago
Hawaiian Airlines
Tue, Jan 20 - Mon, Jan 26
STL
St. Louis
BLI
Bellingham
$343 Roundtrip, found 2 days ago
$343
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Jan 20 from St. Louis to Bellingham, returning Mon, Jan 26, priced at $343 found 2 days ago
Hawaiian Airlines
Fri, Jan 23 - Tue, Jan 27
STL
St. Louis
BLI
Bellingham
$352 Roundtrip, found 2 days ago
$352
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Fri, Jan 23 from St. Louis to Bellingham, returning Tue, Jan 27, priced at $352 found 2 days ago
Hawaiian Airlines
Tue, Jan 20 - Sun, Jan 25
STL
St. Louis
BLI
Bellingham
$353 Roundtrip, found 2 days ago
$353
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Jan 20 from St. Louis to Bellingham, returning Sun, Jan 25, priced at $353 found 2 days ago
Hawaiian Airlines
Mon, Dec 8 - Thu, Dec 18
STL
St. Louis
BLI
Bellingham
$362 Roundtrip, found 1 day ago
$362
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Mon, Dec 8 from St. Louis to Bellingham, returning Thu, Dec 18, priced at $362 found 1 day ago
Hawaiian Airlines
Fri, Jan 23 - Sun, Jan 25
STL
St. Louis
BLI
Bellingham
$363 Roundtrip, found 2 days ago
$363
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Fri, Jan 23 from St. Louis to Bellingham, returning Sun, Jan 25, priced at $363 found 2 days ago
Alaska Airlines
Thu, Dec 4 - Wed, Dec 10
STL
St. Louis
BLI
Bellingham
$369 Roundtrip, found 8 hours ago
$369
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Thu, Dec 4 from St. Louis to Bellingham, returning Wed, Dec 10, priced at $369 found 8 hours ago
Hawaiian Airlines
Thu, Dec 11 - Fri, Dec 12
STL
St. Louis
BLI
Bellingham
$374 Roundtrip, found 1 day ago
$374
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Thu, Dec 11 from St. Louis to Bellingham, returning Fri, Dec 12, priced at $374 found 1 day ago
American Airlines
Thu, Jan 22 - Sun, Jan 25
STL
St. Louis
BLI
Bellingham
$560 Roundtrip, found 2 days ago
$560
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Jan 22 from St. Louis to Bellingham, returning Sun, Jan 25, priced at $560 found 2 days ago

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Bellingham Intl. Airport (BLI) cost?
Snag a cheap one-way flight from $190 or cheap return flight from $342 from Lambert-St. Louis Intl. Airport (STL) to Bellingham Intl. Airport (BLI) 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 Lambert-St. Louis Intl. Airport (STL) to Bellingham Intl. Airport (BLI)?
Traveling in January can help you save, as it's the cheapest month for flights between STL and BLI. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Bellingham Intl. Airport (BLI)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest STL to BLI flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Bellingham Intl. Airport (BLI)?
There are no daily direct flights from Lambert-St. Louis Intl. Airport (STL) to Bellingham Intl. Airport (BLI). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way in no time at all.
What day of the week has the most flights from STL to BLI?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary depending on a range of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Bellingham Intl. Airport (BLI)?
To arrive at Bellingham Intl. Airport (BLI) on schedule, select a flight that leaves from Lambert-St. Louis Intl. Airport (STL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Lambert-St. Louis Intl. Airport (STL) to Bellingham Intl. Airport (BLI) last-minute?
Last-minute bookings from STL to BLI are usually more expensive. To secure the best prices, start searching for flights well ahead of time. That said, if you're flexible with your travel dates, you may land a cheap ticket right before your trip.
Is it cheaper to book a STL to BLI flight and hotel package?
You'll typically save money by booking a STL to BLI 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. After selecting your preferred flights and accommodations, consider adding extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Bellingham Intl. Airport (BLI)?
Typically, you're able to cancel or reschedule your STL to BLI flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you'd like further information, visit our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Bellingham Intl.
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines
Roundtrip price
$342
Distance
1732 mi

Book with confidence

St. Louis to Bellingham Flights

The cheapest times to fly from St. Louis to Bellingham

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 St. Louis to Bellingham are during the month of January. You can find some of the cheapest flights from St. Louis to Bellingham with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Bellingham

Sunday is one of the best days to book for cheap flights from St. Louis to Bellingham: 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 St. Louis to Bellingham

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 St. Louis to Bellingham in 2025. You can also book with separate airlines for your outbound and return journeys, from $190 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 St. Louis to Bellingham 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 St. Louis to Bellingham 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.

 

St. Louis to Bellingham Flights

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*Available to One Key members.