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$345+ 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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
BHX — SEA
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
1 adult, Economy
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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 March 12, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/8. 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.
Wed 4/2212:00 pm
BHX
-
SEA
1 stop13h 10m
Multiple Airlines
Wed 4/297:10 pm
SEA
-
BHX
1 stop17h 55m
Multiple Airlines
Deal found 3/8$631
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Wed 4/812:00 pm
BHX
-
SEA
1 stop13h 10m
Multiple Airlines
Mon 4/137:10 pm
SEA
-
BHX
1 stop19h 30m
Multiple Airlines
Deal found 3/10$671
This Booking.com deal was found by Cheapflights users on 3/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/268:30 am
BHX
-
SEA
2 stops18h 15m
Multiple Airlines
Sun 5/37:00 pm
SEA
-
BHX
2 stops21h 55m
Multiple Airlines
Deal found 3/12$680
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Fri 4/108:30 am
BHX
-
SEA
1 stop16h 40m
Multiple Airlines
Tue 4/147:10 pm
SEA
-
BHX
1 stop14h 05m
Multiple Airlines
Deal found 3/10$749
This Mytrip deal was found by Cheapflights users on 3/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:50 am
BHX
-
SEA
2 stops19h 50m
Multiple Airlines
Thu 4/163:40 pm
SEA
-
BHX
2 stops23h 00m
Multiple Airlines
Deal found 3/10$793
This Mytrip deal was found by Cheapflights users on 3/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:00 am
BHX
-
SEA
3 stops44h 20m
Multiple Airlines
Wed 4/153:40 pm
SEA
-
BHX
3 stops25h 30m
Multiple Airlines
Deal found 3/11$808
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Wed 4/228:10 am
BHX
-
SEA
1 stop17h 00m
Aer Lingus
Wed 4/297:10 pm
SEA
-
BHX
1 stop16h 45m
Aer Lingus
Deal found 3/9$815

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 March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$631
(Kiwi.com)

One-way from

$345
(Kiwi.com)

Popular in

August

Cheapest in

March

Average price

$588
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. 16% potential increase in price ($170 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 12, 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

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Wed 4/22

8:30 am-5:55 pm

2 stops17h 25m

Seattle/Tacoma Intl

Wed 4/29

3:40 pm-5:35 pm

2 stops17h 55m

$640

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Sun 4/26

8:30 am-7:20 pm

3 stops18h 50m

Seattle/Tacoma Intl

Sun 5/3

7:00 pm-12:55 am

2 stops21h 55m

$701
Quickest round-trip

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Wed 4/22

8:10 am-5:10 pm

1 stop17h 00m

Seattle/Tacoma Intl

Wed 4/29

7:10 pm-7:55 pm

1 stop16h 45m

$815

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Sat 4/25

3:20 pm-6:45 pm

2 stops35h 25m

Seattle/Tacoma Intl

Sat 5/2

7:10 pm-8:00 am

1 stop28h 50m

$862

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Sun 4/26

8:10 am-5:10 pm

1 stop17h 00m

Seattle/Tacoma Intl

Sun 5/3

7:10 pm-7:55 pm

1 stop16h 45m

$889

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Wed 4/22

6:05 am-7:00 pm

2 stops20h 55m

Seattle/Tacoma Intl

Wed 4/29

2:39 pm-5:10 pm

2 stops18h 31m

$911

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Wed 4/22

6:05 am-11:27 pm

3 stops25h 22m

Seattle/Tacoma Intl

Wed 4/29

11:35 am-5:30 pm

2 stops21h 55m

$912

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Fri 4/24

7:15 pm-9:52 pm

2 stops34h 37m

Seattle/Tacoma Intl

Fri 5/1

7:00 am-6:35 pm

2 stops27h 35m

$932

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Sun 4/5

6:15 am-10:53 pm

3 stops24h 38m

Seattle/Tacoma Intl

Sun 4/12

8:00 pm-5:25 pm

2 stops37h 25m

$954

BirminghamSeattle

BHX - SEA

BHXSEA

Birmingham

Wed 4/8

5:55 am-4:30 pm

1 stop18h 35m

Seattle/Tacoma Intl

Wed 4/15

6:40 pm-10:10 pm

1 stop19h 30m

$957

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 14 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

How far ahead should I book a flight from Birmingham to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Birmingham to Seattle. Price data was last updated on March 6, 2026.

The best time to book flights from Birmingham to Seattle is 56 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 $486). Flying from Birmingham to Seattle in July is currently the most expensive (average of $783). 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.

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 March 12, 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
1,544 reviews

Boarding

7.4

Overall

7.4

Food

7.0

Crew

8.1

Entertainment

7.0

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Jayesh,Jan 2026

EWR - CDG

More choice on Food Coffee portion was small, the cups could be bigger. Dessert could have more options.
Air France
7.4
Good
1,544 reviews
Air France
7.4
Good
1,544 reviews

Boarding

7.4

Overall

7.4

Food

7.0

Crew

8.1

Entertainment

7.0

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Jayesh,Jan 2026

EWR - CDG

More choice on Food Coffee portion was small, the cups could be bigger. Dessert could have more options.

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 Aer Lingus fly from Birmingham to Seattle in about 17h. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 4695 mi.

  • 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 7% 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 $486). Flying from Birmingham to Seattle in July is currently the most expensive (average of $783). 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
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Kent
Lynnwood
Edmonds
Lacey
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

Browse thousands of different options on Cheapflights for your next trip

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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 March 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$780Average$780FlexibilityNo cancel feeOn-time77%

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