$180 Cheap Flights from St. Louis (STL) to Bellingham (BLI)

View $180 flight on Wed, Oct 8, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $180 for one-way flights and $318 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Sat, Oct 11 - Wed, Oct 15
STL
St. Louis
BLI
Bellingham
$318 Roundtrip, found 5 days ago
$318
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Sat, Oct 11 from St. Louis to Bellingham, returning Wed, Oct 15, priced at $318 found 5 days ago
Hawaiian Airlines
Tue, Sep 23 - Tue, Sep 30
STL
St. Louis
BLI
Bellingham
$322 Roundtrip, found 6 days ago
$322
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Tue, Sep 23 from St. Louis to Bellingham, returning Tue, Sep 30, priced at $322 found 6 days ago
Hawaiian Airlines
Sat, Oct 11 - Thu, Oct 16
STL
St. Louis
BLI
Bellingham
$324 Roundtrip, found 5 days ago
$324
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Sat, Oct 11 from St. Louis to Bellingham, returning Thu, Oct 16, priced at $324 found 5 days ago
Hawaiian Airlines
Tue, Sep 23 - Thu, Oct 2
STL
St. Louis
BLI
Bellingham
$328 Roundtrip, found 6 days ago
$328
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Tue, Sep 23 from St. Louis to Bellingham, returning Thu, Oct 2, priced at $328 found 6 days ago
Hawaiian Airlines
Tue, Sep 23 - Fri, Sep 26
STL
St. Louis
BLI
Bellingham
$332 Roundtrip, found 6 days ago
$332
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Tue, Sep 23 from St. Louis to Bellingham, returning Fri, Sep 26, priced at $332 found 6 days ago
Hawaiian Airlines
Wed, Oct 8 - Sat, Oct 18
STL
St. Louis
BLI
Bellingham
$336 Roundtrip, found 3 days ago
$336
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Wed, Oct 8 from St. Louis to Bellingham, returning Sat, Oct 18, priced at $336 found 3 days ago
Hawaiian Airlines
Tue, Sep 23 - Sun, Sep 28
STL
St. Louis
BLI
Bellingham
$342 Roundtrip, found 6 days ago
$342
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Tue, Sep 23 from St. Louis to Bellingham, returning Sun, Sep 28, priced at $342 found 6 days ago
Hawaiian Airlines
Wed, Oct 8 - Fri, Oct 17
STL
St. Louis
BLI
Bellingham
$346 Roundtrip, found 3 days ago
$346
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Wed, Oct 8 from St. Louis to Bellingham, returning Fri, Oct 17, priced at $346 found 3 days ago
Alaska Airlines
Sat, Sep 27 - Sat, Oct 4
STL
St. Louis
BLI
Bellingham
$396 Roundtrip, found 1 day ago
$396
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Sep 27 from St. Louis to Bellingham, returning Sat, Oct 4, priced at $396 found 1 day ago
American Airlines
Wed, Dec 3 - Tue, Dec 16
STL
St. Louis
BLI
Bellingham
$585 Roundtrip, found 2 days ago
$585
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Dec 3 from St. Louis to Bellingham, returning Tue, Dec 16, priced at $585 found 2 days ago

Alternative airports near Bellingham

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

Select flight to Bellingham Intl. BLI. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $502
BLI
Bellingham Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $502
Flights from St. Louis (STL) to Bellingham (BLI)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Bellingham Intl.
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines
Roundtrip price
$318
Distance
1732 mi

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 October. 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 $180 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.

 

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 $180 or cheap return flight from $318 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 October 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.

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*Available to One Key members.