HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$459+ Cheap flights from Birmingham (BHX) to Seattle (SEA)

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
BHX — SEA
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Birmingham to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Birmingham to Seattle

Cheapest flights from Birmingham to Seattle
Explore the most affordable flight options available from Birmingham to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 9, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/6. 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.
Sat 7/48:10 am
BHX
-
SEA
1 stop17h 00m
Aer Lingus
Wed 7/157:10 pm
SEA
-
BHX
1 stop16h 45m
Aer Lingus
Deal found 6/6$643
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Sat 7/48:10 am
BHX
-
SEA
1 stop17h 00m
Aer Lingus
Sun 7/127:10 pm
SEA
-
BHX
1 stop12h 55m
Aer Lingus
Deal found 6/8$644
This Expedia deal was found by Cheapflights users on 6/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/212:20 pm
BHX
-
SEA
1 stop12h 50m
Aer Lingus
Thu 7/97:10 pm
SEA
-
BHX
1 stop17h 30m
Aer Lingus
Deal found 6/5$647
This TravelUp deal was found by Cheapflights users on 6/5. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/28:10 am
BHX
-
SEA
1 stop17h 00m
British Airways
Wed 7/87:10 pm
SEA
-
BHX
1 stop15h 00m
British Airways
Deal found 6/5$706
This Expedia deal was found by Cheapflights users on 6/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/28:10 am
BHX
-
SEA
1 stop17h 00m
British Airways
Thu 7/97:10 pm
SEA
-
BHX
1 stop12h 55m
British Airways
Deal found 6/4$716
This TravelUp deal was found by Cheapflights users on 6/5. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/149:35 pm
BHX
-
SEA
1 stop27h 35m
British Airways
Tue 6/237:10 pm
SEA
-
BHX
1 stop12h 55m
British Airways
Deal found 6/5$719
This British Airways deal was found by Cheapflights users on 6/7. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:20 pm
BHX
-
SEA
1 stop12h 50m
British Airways
Tue 10/137:10 pm
SEA
-
BHX
1 stop15h 00m
British Airways
Deal found 6/7$744
This Expedia deal was found by Cheapflights users on 6/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/212:20 pm
BHX
-
SEA
1 stop12h 50m
Aer Lingus
Tue 7/77:10 pm
SEA
-
BHX
1 stop15h 00m
Aer Lingus
Deal found 6/7$756

Find flight deals from Birmingham to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Birmingham (BHX) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$643
(Kiwi.com)

One-way from

$459
(Kiwi.com)

Popular in

August

Cheapest in

April

Average price

$1,023
Provider with most accurate pricing for Birmingham-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Birmingham-Seattle/Tacoma Intl flights.
Search Deals
From Birmingham to Seattle/Tacoma Intl
Search Deals
One-way flight from Birmingham to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($195 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Birmingham to Seattle 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 June 9, 2026.
Use the filters below to find and compare flights from Birmingham to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Sat 10/10

12:20 pm-5:10 pm

1 stop12h 50m

Seattle/Tacoma Intl

Tue 10/13

7:10 pm-6:10 pm

1 stop15h 00m

$744

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Sat 7/4

5:55 am-12:20 pm

1 stop14h 25m

Seattle/Tacoma Intl

Wed 7/15

7:20 pm-9:50 am

2 stops30h 30m

$781

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Thu 7/2

6:05 am-10:42 pm

2 stops24h 37m

Seattle/Tacoma Intl

Tue 7/7

2:10 pm-5:35 pm

1 stop19h 25m

$781

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Thu 7/2

12:20 pm-5:10 pm

1 stop12h 50m

Seattle/Tacoma Intl

Thu 7/9

8:20 pm-7:40 am

2 stops27h 20m

$784

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Sat 10/10

5:55 am-10:42 pm

2 stops24h 47m

Seattle/Tacoma Intl

Tue 10/13

10:30 am-5:35 pm

2 stops23h 05m

$785

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Thu 7/2

6:05 am-6:32 pm

2 stops20h 27m

Seattle/Tacoma Intl

Thu 7/9

11:02 am-5:15 pm

2 stops22h 13m

$786

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Wed 10/7

8:10 am-5:10 pm

1 stop17h 00m

Seattle/Tacoma Intl

Sun 10/11

8:20 pm-8:05 am

2 stops27h 45m

$805

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Mon 7/20

5:55 am-9:40 am

2 stops35h 45m

Seattle/Tacoma Intl

Thu 7/30

2:10 pm-5:15 pm

1 stop19h 05m

$864
Cheapest one-way

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Sat 9/5

8:15 pm-4:00 pm

3 stops51h 45m

$459

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Thu 7/2

6:00 pm-9:00 pm

2 stops35h 00m

$702

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/7

Showing 1-10 of 12 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Birmingham-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Birmingham-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Birmingham-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Birmingham-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Birmingham-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Birmingham to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Birmingham 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 Birmingham to Seattle

What is the cheapest month to book a flight from Birmingham to Seattle?

Currently, April is the cheapest month in which you can book a flight from Birmingham to Seattle (average of $516). Flying from Birmingham to Seattle in August is currently the most expensive (average of $1,145). 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.

How much does it cost to fly round-trip from Birmingham to Seattle?

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated June 9, 2026.
Read through reviews of airlines operating flights from Birmingham to Seattle, such as Air France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air France
7.4
Good
1,598 reviews

Food

7.0

Entertainment

7.0

Overall

7.4

Comfort

7.4

Crew

8.2

Boarding

7.5

Reviews

1 / 20
4.0
Okay

Rakesh,Mar 2026

SLC - AMS

The flight was on Delta. Delta was super efficient.. Overall good flight.
Air France
7.4
Good
1,598 reviews
Air France
7.4
Good
1,598 reviews

Food

7.0

Entertainment

7.0

Overall

7.4

Comfort

7.4

Crew

8.2

Boarding

7.5

Reviews

1 / 20
4.0
Okay

Rakesh,Mar 2026

SLC - AMS

The flight was on Delta. Delta was super efficient.. Overall good flight.

Related info for your journey

Find useful and relevant information for your journey from Birmingham to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Birmingham to Seattle?

    Airlines like British Airways and United Airlines fly from Birmingham to Seattle in about 12h 50m. The time it takes to get you to your destination can typically vary by up to 1h 35m. Airlines will cover a distance of 4695 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Birmingham to Seattle round-trip?

    Air France, at $780, was found to be the cheapest airline from Birmingham to Seattle.. Air France is priced at 5% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Birmingham to Seattle that include hotel bookings?

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

  • How can I find direct flights from Birmingham to Seattle?

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

  • Can I find deals for business class flights from Birmingham to Seattle?

    Yes. Cheapflights offers flight deals from Birmingham to Seattle 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 Birmingham to Seattle?

    Currently, April is the cheapest month in which you can book a flight from Birmingham to Seattle (average of $516). Flying from Birmingham to Seattle in August is currently the most expensive (average of $1,145). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Lacey
Ocean Shores
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Marysville
Shoreline

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Birmingham to Seattle

Discover the top airline that operate flights from Birmingham to Seattle. 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 June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$780Average$780FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.