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Cheap flights from Brownsville to Seattle from $300

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Brownsville to Seattle departing on 12/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
6:00 am - 12:39 pm
BRO
-
SEA
8h 39m1 stop
Alaska Airlines Logo
8:23 am - 6:19 pm
SEA
-
BRO
7h 56m1 stop
$429Alaska Airlines
Sat, Jan 31 - Tue, Feb 3
United Airlines Logo
7:15 am - 12:49 pm
BRO
-
SEA
7h 34m1 stop
United Airlines Logo
5:00 am - 6:02 pm
SEA
-
BRO
11h 02m2 stops
$434United Airlines
Sat, Jan 31 - Tue, Feb 3
United Airlines Logo
7:15 am - 9:12 pm
BRO
-
SEA
15h 57m3 stops
United Airlines Logo
7:00 am - 4:12 pm
SEA
-
BRO
7h 12m1 stop
$439United Airlines
Sat, Jan 31 - Tue, Feb 3
American Airlines Logo
3:01 pm - 9:24 pm
BRO
-
SEA
8h 23m1 stop
American Airlines Logo
12:59 am - 10:17 am
SEA
-
BRO
7h 18m1 stop
$440American Airlines
Tue, Mar 17 - Fri, Mar 20
United Airlines Logo
7:15 am - 9:12 pm
BRO
-
SEA
15h 57m3 stops
United Airlines Logo
9:00 am - 9:31 pm
SEA
-
BRO
10h 31m2 stops
$444United Airlines
Sat, Jan 31 - Tue, Feb 3
American Airlines Logo
3:01 pm - 10:52 pm
BRO
-
SEA
9h 51m2 stops
American Airlines Logo
1:57 pm - 10:54 pm
SEA
-
BRO
6h 57m1 stop
$445American Airlines
Tue, Mar 17 - Sat, Mar 21
American Airlines Logo
8:04 pm - 12:55 am
BRO
-
SEA
6h 51m1 stop
American Airlines Logo
12:59 am - 10:17 am
SEA
-
BRO
7h 18m1 stop
$514American Airlines
Mon, Mar 16 - Thu, Mar 19
American Airlines Logo
3:01 pm - 10:52 pm
BRO
-
SEA
9h 51m2 stops
American Airlines Logo
11:22 am - 10:54 pm
SEA
-
BRO
9h 32m2 stops
$682American Airlines
Tue, Mar 17 - Sat, Mar 21
United Airlines Logo
5:15 am - 4:14 pm
BRO
-
SEA
12h 59m2 stops
United Airlines Logo
6:45 am - 4:22 pm
SEA
-
BRO
7h 37m1 stop
$760United Airlines
Mon, Mar 16 - Fri, Mar 20
United Airlines Logo
7:15 am - 12:34 am
BRO
-
SEA
19h 19m1 stop
United Airlines Logo
7:00 am - 4:12 pm
SEA
-
BRO
7h 12m1 stop
$897United Airlines
Sat, Jan 3 - Wed, Jan 7

United Airlines flights from Brownsville to Seattle

Our best United Airlines deals on Brownsville to Seattle flight tickets
United Airlines
Jan 31
BRO7:15 amBrownsville South Padre Is. Intl
7h 34m
1 stop
SEA12:49 pmSeattle/Tacoma Intl
Feb 3
SEA5:00 amSeattle/Tacoma Intl
11h 02m
2 stops
BRO6:02 pmBrownsville South Padre Is. Intl
$434
Find similar
United Airlines
Jan 31
BRO7:15 amBrownsville South Padre Is. Intl
15h 57m
3 stops
SEA9:12 pmSeattle/Tacoma Intl
Feb 3
SEA12:57 pmSeattle/Tacoma Intl
6h 34m
1 stop
BRO9:31 pmBrownsville South Padre Is. Intl
$439
Find similar
United Airlines
Jan 31
BRO7:15 amBrownsville South Padre Is. Intl
15h 57m
3 stops
SEA9:12 pmSeattle/Tacoma Intl
Feb 3
SEA8:40 amSeattle/Tacoma Intl
10h 51m
2 stops
BRO9:31 pmBrownsville South Padre Is. Intl
$444
Find similar

American Airlines flights from Brownsville to Seattle

Our best American Airlines deals on Brownsville to Seattle flight tickets
American Airlines
Mar 17
BRO3:01 pmBrownsville South Padre Is. Intl
8h 23m
1 stop
SEA9:24 pmSeattle/Tacoma Intl
Mar 20
SEA12:59 amSeattle/Tacoma Intl
7h 18m
1 stop
BRO10:17 amBrownsville South Padre Is. Intl
$440
Find similar
American Airlines
Mar 17
BRO3:01 pmBrownsville South Padre Is. Intl
9h 51m
2 stops
SEA10:52 pmSeattle/Tacoma Intl
Mar 21
SEA1:57 pmSeattle/Tacoma Intl
6h 57m
1 stop
BRO10:54 pmBrownsville South Padre Is. Intl
$445
Find similar
American Airlines
Mar 16
BRO8:04 pmBrownsville South Padre Is. Intl
6h 51m
1 stop
SEA12:55 amSeattle/Tacoma Intl
Mar 19
SEA12:59 amSeattle/Tacoma Intl
7h 18m
1 stop
BRO10:17 amBrownsville South Padre Is. Intl
$514
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Brownsville 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, momondo users made 832,500 searches. Data last updated December 20, 2025.
Use the filters below to find and compare flights from Brownsville to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Sat 1/31

6:00 am-12:39 pm

1 stop8h 39m

Seattle/Tacoma Intl

Tue 2/3

8:23 am-6:19 pm

1 stop7h 56m

$429

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Sat 1/31

7:15 am-12:49 pm

1 stop7h 34m

Seattle/Tacoma Intl

Tue 2/3

5:00 am-6:02 pm

2 stops11h 02m

$434

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Sat 1/31

7:15 am-9:12 pm

3 stops15h 57m

Seattle/Tacoma Intl

Tue 2/3

7:00 am-4:12 pm

1 stop7h 12m

$439

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Tue 3/17

3:01 pm-9:24 pm

1 stop8h 23m

Seattle/Tacoma Intl

Fri 3/20

12:59 am-10:17 am

1 stop7h 18m

$440

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Sat 1/31

7:15 am-9:12 pm

3 stops15h 57m

Seattle/Tacoma Intl

Tue 2/3

9:00 am-9:31 pm

2 stops10h 31m

$444

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Tue 3/17

3:01 pm-10:52 pm

2 stops9h 51m

Seattle/Tacoma Intl

Sat 3/21

1:57 pm-10:54 pm

1 stop6h 57m

$445

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Mon 3/16

8:04 pm-12:55 am

1 stop6h 51m

Seattle/Tacoma Intl

Thu 3/19

12:59 am-10:17 am

1 stop7h 18m

$514

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Tue 3/17

3:01 pm-10:52 pm

2 stops9h 51m

Seattle/Tacoma Intl

Sat 3/21

11:22 am-10:54 pm

2 stops9h 32m

$682

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Mon 3/16

5:15 am-4:14 pm

2 stops12h 59m

Seattle/Tacoma Intl

Fri 3/20

6:45 am-4:22 pm

1 stop7h 37m

$760

BrownsvilleSeattle

BRO - SEA

BROSEA

Brownsville South Padre Is. Intl

Sat 1/3

7:15 am-12:34 am

1 stop19h 19m

Seattle/Tacoma Intl

Wed 1/7

7:00 am-4:12 pm

1 stop7h 12m

$897

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Brownsville to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Brownsville and Seattle?

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Brownsville to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $301. If you don’t want to visit Seattle in January, then you should wait until September to fly from Brownsville, when ticket prices are also cheap, with an average price of $318.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Brownsville is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $451. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Brownsville because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $656.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Brownsville in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $501 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the morning, with an average ticket price of $585. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Brownsville to Seattle flights?

You could potentially save up to 44% on your flight if you consider stops on a Brownsville to Seattle flight.

When to book flights from Brownsville to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Brownsville to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Brownsville to Seattle (BRO to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Brownsville to Seattle

Fastest flight time

7h 34m

Direct flights

None
The fastest flight from Brownsville to Seattle takes 7h 34m
There are no direct flights from Brownsville to Seattle. There are no popular flight routes from Brownsville to Seattle.
Search flight deals

  • How far is Brownsville South Padre Is. Intl to Seattle/Tacoma Intl by plane?

    Seattle/Tacoma Intl is 2015.9 mi away from Brownsville South Padre Is. Intl. By plane, this route typically takes 7h 34m.

  • When did momondo last update prices for flights from Brownsville South Padre Is. Intl Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Brownsville South Padre Is. Intl Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Brownsville South Padre Is. Intl Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Brownsville South Padre Is. Intl Airport to Seattle/Tacoma Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Brownsville South Padre Is. Intl Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Brownsville to Seattle?

Best airlines flying from Brownsville to Seattle

Compare and see reviews for airlines that fly from Brownsville to Seattle with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $249Free CancellationRating
7.9
8,021 reviews
Search Delta flights
American AirlinesPriceFrom $301Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
United AirlinesPriceFrom $358Free CancellationRating
7.4
9,099 reviews
Search United Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Redmond
Tukwila
Cle Elum
Federal Way
Lakewood
Fife
Centralia
Westport
Kirkland
Shoreline

Why use momondo?

Why should I use momondo to find a flight deal from Brownsville to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Brownsville to Seattle for you.

Can I find flights from Brownsville to Seattle with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seattle from Brownsville with this policy.

How can momondo help me find flights from Brownsville to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Brownsville to Seattle.

I’m not ready to book a flight from Brownsville to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Brownsville and alert you when they change.

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