$149 Cheap Flights from Birmingham (BHM) to Seattle (SEA)

View $149 flight on Wed, Oct 29, 2025Opens in a new window

Popular airlines from Birmingham International Airport (BHM) to Seattle-Tacoma International Airport (SEA)

Cheap Flights from Birmingham to Seattle (BHM-SEA)

Prices were available within the past 7 days and start at $149 for one-way flights and $297 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Tue, Sep 30 - Wed, Oct 8
BHM
Birmingham
SEA
Seattle
$297 Roundtrip, found 19 hours ago
$297
Roundtrip
found 19 hours ago
Select Southwest Airlines flight, departing Tue, Sep 30 from Birmingham to Seattle, returning Wed, Oct 8, priced at $297 found 19 hours ago
American Airlines
Tue, Sep 30 - Wed, Oct 8
BHM
Birmingham
SEA
Seattle
$297 Roundtrip, found 19 hours ago
$297
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Tue, Sep 30 from Birmingham to Seattle, returning Wed, Oct 8, priced at $297 found 19 hours ago
Delta
Tue, Oct 7 - Tue, Oct 21
BHM
Birmingham
SEA
Seattle
$297 Roundtrip, found 1 hour ago
$297
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Oct 7 from Birmingham to Seattle, returning Tue, Oct 21, priced at $297 found 1 hour ago
United
Wed, Sep 10 - Wed, Sep 17
BHM
Birmingham
SEA
Seattle
$297 Roundtrip, found 20 hours ago
$297
Roundtrip
found 20 hours ago
Select United flight, departing Wed, Sep 10 from Birmingham to Seattle, returning Wed, Sep 17, priced at $297 found 20 hours ago
Southwest Airlines
Wed, Sep 10 - Wed, Sep 17
BHM
Birmingham
SEA
Seattle
$297 Roundtrip, found 20 hours ago
$297
Roundtrip
found 20 hours ago
Select Southwest Airlines flight, departing Wed, Sep 10 from Birmingham to Seattle, returning Wed, Sep 17, priced at $297 found 20 hours ago
American Airlines
Sat, Dec 13 - Tue, Dec 16
BHM
Birmingham
SEA
Seattle
$299 Roundtrip, found 4 days ago
$299
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Dec 13 from Birmingham to Seattle, returning Tue, Dec 16, priced at $299 found 4 days ago
United
Tue, Sep 30 - Wed, Oct 8
BHM
Birmingham
SEA
Seattle
$301 Roundtrip, found 19 hours ago
$301
Roundtrip
found 19 hours ago
Select United flight, departing Tue, Sep 30 from Birmingham to Seattle, returning Wed, Oct 8, priced at $301 found 19 hours ago
Southwest Airlines
Tue, Sep 30 - Wed, Oct 8
BHM
Birmingham
SEA
Seattle
$302 Roundtrip, found 19 hours ago
$302
Roundtrip
found 19 hours ago
Select Southwest Airlines flight, departing Tue, Sep 30 from Birmingham to Seattle, returning Wed, Oct 8, priced at $302 found 19 hours ago
United
Sat, Nov 1 - Tue, Nov 4
BHM
Birmingham
SEA
Seattle
$304 Roundtrip, found 4 days ago
$304
Roundtrip
found 4 days ago
Select United flight, departing Sat, Nov 1 from Birmingham to Seattle, returning Tue, Nov 4, priced at $304 found 4 days ago
Alaska Airlines
Wed, Oct 29 - Sun, Nov 2
BHM
Birmingham
SEA
Seattle
$517 Roundtrip, just found
$517
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Oct 29 from Birmingham to Seattle, returning Sun, Nov 2, priced at $517 just found

Find the cheapest month to fly from Birmingham (BHM) to Seattle (SEA)

August is typically the cheapest month to fly

From $228 - $878 per traveler.

Graph displaying average flight prices per month

Alternative airports near Seattle

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

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $497
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $497
Flights from Birmingham (BHM) to Seattle (SEA)
Origin airport
Birmingham Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$296
Distance
2074 mi

Birmingham to Seattle Flights

The cheapest times to fly from Birmingham to Seattle

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 Birmingham to Seattle are during the month of September. You can find some of the cheapest flights from Birmingham to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Birmingham to Seattle

Sunday is one of the best days to book for cheap flights from Birmingham to Seattle: 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 Birmingham to Seattle

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 Birmingham to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $149 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 Birmingham to Seattle 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 Birmingham to Seattle 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 Birmingham Intl. Airport (BHM) to Seattle - Tacoma Intl. Airport (SEA) cost?
Lock in a cheap one-way flight from $149 or cheap return flight from $297 from Birmingham Intl. Airport (BHM) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Birmingham Intl. Airport (BHM) to Seattle - Tacoma Intl. Airport (SEA)?
September is the cheapest month to fly from BHM to SEA. Planning your trip for the off-season is often the key to scoring lower fares.
What is the cheapest airline that flies from Birmingham Intl. Airport (BHM) to Seattle - Tacoma Intl. Airport (SEA)?
To find the cheapest airline flying from BHM to SEA, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Birmingham Intl. Airport (BHM) to Seattle - Tacoma Intl. Airport (SEA)?
Nonstop flights from Birmingham Intl. Airport (BHM) to Seattle - Tacoma Intl. Airport (SEA) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BHM to SEA?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change depending on various factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Birmingham Intl. Airport (BHM) to Seattle - Tacoma Intl. Airport (SEA)?
Opt for a flight from Birmingham Intl. Airport (BHM) to Seattle - Tacoma Intl. Airport (SEA) that leaves before 3 PM to reduce the likelihood of delays. Departures later than this have a 22% higher chance of being canceled, on average.**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 Birmingham Intl. Airport (BHM) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute bookings from BHM to SEA are generally more expensive. For the lowest prices, start searching for flights as soon as possible. That being said, if you're flexible with your travel dates, you may land a cheap fare right before your trip.
Is it cheaper to book a BHM to SEA flight and hotel package?
Opting for a BHM to SEA flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Pick from our extensive range of accommodations and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Birmingham Intl. Airport (BHM) to Seattle - Tacoma Intl. Airport (SEA)?
It's usually possible to reschedule or cancel your BHM to SEA flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.