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Cheap flights from Seattle to Brownsville from $433

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Brownsville departing on 9/4. 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

American Airlines Logo
5:26 am - 2:34 pmSEA-BRO
7h 08m1 stop
American Airlines Logo
5:26 am - 10:54 amBRO-SEA
7h 28m1 stop
$433American Airlines
Find Deal
Thu, Sep 4 - Sun, Sep 7
American Airlines Logo
6:11 am - 6:09 pmSEA-BRO
9h 58m2 stops
American Airlines Logo
5:26 am - 10:54 amBRO-SEA
7h 28m1 stop
$438American Airlines
Find Deal
Thu, Sep 4 - Sun, Sep 7
United Airlines Logo
5:00 am - 4:05 pmSEA-BRO
9h 05m1 stop
United Airlines Logo
12:13 pm - 7:14 pmBRO-SEA
9h 01m1 stop
$469United Airlines
Find Deal
Thu, Aug 14 - Mon, Aug 18
United Airlines Logo
5:00 am - 4:05 pmSEA-BRO
9h 05m1 stop
United Airlines Logo
5:19 pm - 12:59 amBRO-SEA
9h 40m2 stops
$474United Airlines
Find Deal
Thu, Aug 14 - Mon, Aug 18
United Airlines Logo
6:45 am - 8:40 pmSEA-BRO
11h 55m2 stops
United Airlines Logo
5:19 pm - 12:59 amBRO-SEA
9h 40m2 stops
$479United Airlines
Find Deal
Thu, Aug 14 - Mon, Aug 18
United Airlines Logo
7:10 am - 4:03 pmSEA-BRO
6h 53m1 stop
United Airlines Logo
5:15 pm - 6:49 pmBRO-SEA
27h 34m3 stops
$562United Airlines
Find Deal
Thu, Sep 4 - Sun, Sep 7
Alaska Airlines Logo
12:25 am - 10:03 amSEA-BRO
7h 38m1 stop
Alaska Airlines Logo
3:06 pm - 8:35 pmBRO-SEA
7h 29m1 stop
$563Alaska Airlines
Find Deal
Wed, Aug 13 - Mon, Aug 18
United Airlines Logo
6:25 am - 7:38 pmSEA-BRO
11h 13m2 stops
United Airlines Logo
5:15 pm - 1:30 pmBRO-SEA
22h 15m3 stops
$568United Airlines
Find Deal
Thu, Sep 4 - Sun, Sep 7
American Airlines Logo
1:37 am - 9:53 amSEA-BRO
6h 16m1 stop
American Airlines Logo
7:54 pm - 9:30 amBRO-SEA
15h 36m1 stop
$1,031American Airlines
Find Deal
Sat, Dec 27 - Fri, Jan 2
American Airlines Logo
1:37 am - 9:53 amSEA-BRO
6h 16m1 stop
American Airlines Logo
12:08 pm - 8:00 pmBRO-SEA
9h 52m2 stops
$1,340American Airlines
Find Deal
Sat, Dec 27 - Fri, Jan 2

American Airlines flights from Seattle to Brownsville

Our best American Airlines deals on Seattle to Brownsville flight tickets
American Airlines
Sep 4
SEA5:26 amSeattle/Tacoma Intl
7h 08m
1 stop
BRO2:34 pmBrownsville South Padre Is. Intl
Sep 7
BRO5:26 amBrownsville South Padre Is. Intl
7h 28m
1 stop
SEA10:54 amSeattle/Tacoma Intl
$433
Find similar
American Airlines
Sep 4
SEA6:11 amSeattle/Tacoma Intl
9h 58m
2 stops
BRO6:09 pmBrownsville South Padre Is. Intl
Sep 7
BRO5:26 amBrownsville South Padre Is. Intl
7h 28m
1 stop
SEA10:54 amSeattle/Tacoma Intl
$438
Find similar
American Airlines
Dec 27
SEA1:37 amSeattle/Tacoma Intl
6h 16m
1 stop
BRO9:53 amBrownsville South Padre Is. Intl
Jan 2
BRO7:54 pmBrownsville South Padre Is. Intl
15h 36m
1 stop
SEA9:30 amSeattle/Tacoma Intl
$1,031
Find similar

United Airlines flights from Seattle to Brownsville

Our best United Airlines deals on Seattle to Brownsville flight tickets
United Airlines
Aug 14
SEA5:00 amSeattle/Tacoma Intl
9h 05m
1 stop
BRO4:05 pmBrownsville South Padre Is. Intl
Aug 18
BRO12:13 pmBrownsville South Padre Is. Intl
9h 01m
1 stop
SEA7:14 pmSeattle/Tacoma Intl
$469
Find similar
United Airlines
Aug 14
SEA5:00 amSeattle/Tacoma Intl
9h 05m
1 stop
BRO4:05 pmBrownsville South Padre Is. Intl
Aug 18
BRO5:19 pmBrownsville South Padre Is. Intl
9h 40m
2 stops
SEA12:59 amSeattle/Tacoma Intl
$474
Find similar
United Airlines
Aug 14
SEA6:45 amSeattle/Tacoma Intl
11h 55m
2 stops
BRO8:40 pmBrownsville South Padre Is. Intl
Aug 18
BRO5:19 pmBrownsville South Padre Is. Intl
9h 40m
2 stops
SEA12:59 amSeattle/Tacoma Intl
$479
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Brownsville 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 July 31, 2025.
Use the filters below to find and compare flights from Seattle to Brownsville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Thu 9/4

5:26 am-2:34 pm

1 stop7h 08m

Brownsville South Padre Is. Intl

Sun 9/7

5:26 am-10:54 am

1 stop7h 28m

$433

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Thu 9/4

6:11 am-6:09 pm

2 stops9h 58m

Brownsville South Padre Is. Intl

Sun 9/7

5:26 am-10:54 am

1 stop7h 28m

$438

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Thu 8/14

5:00 am-4:05 pm

1 stop9h 05m

Brownsville South Padre Is. Intl

Mon 8/18

12:13 pm-7:14 pm

1 stop9h 01m

$469

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Thu 8/14

5:00 am-4:05 pm

1 stop9h 05m

Brownsville South Padre Is. Intl

Mon 8/18

5:19 pm-12:59 am

2 stops9h 40m

$474

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Thu 8/14

6:45 am-8:40 pm

2 stops11h 55m

Brownsville South Padre Is. Intl

Mon 8/18

5:19 pm-12:59 am

2 stops9h 40m

$479

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Thu 9/4

7:10 am-4:03 pm

1 stop6h 53m

Brownsville South Padre Is. Intl

Sun 9/7

5:15 pm-6:49 pm

3 stops27h 34m

$562

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Wed 8/13

12:25 am-10:03 am

1 stop7h 38m

Brownsville South Padre Is. Intl

Mon 8/18

3:06 pm-8:35 pm

1 stop7h 29m

$563

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Thu 9/4

6:25 am-7:38 pm

2 stops11h 13m

Brownsville South Padre Is. Intl

Sun 9/7

5:15 pm-1:30 pm

3 stops22h 15m

$568

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Sat 12/27

1:37 am-9:53 am

1 stop6h 16m

Brownsville South Padre Is. Intl

Fri 1/2

7:54 pm-9:30 am

1 stop15h 36m

$1,031

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Sat 12/27

1:37 am-9:53 am

1 stop6h 16m

Brownsville South Padre Is. Intl

Fri 1/2

12:08 pm-8:00 pm

2 stops9h 52m

$1,340

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Brownsville from

How to get the cheapest flight ticket from Seattle to Brownsville

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 cheapest month to fly to Brownsville?

The month of January is another great option to travel to Brownsville, with average flight prices from Seattle averaging around $343.

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

The cheapest day to depart from Seattle to Brownsville is on a Thursday. Travelers who choose to depart for Brownsville on a Thursday will often find tickets for as low as $386. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Brownsville on Monday is $627.

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

Flying to Brownsville from Seattle at noon is the least expensive time of day to depart. momondo users have found prices as low as $326 when looking at flights departing at noon. Flights to Brownsville are more costly in the morning, with an average ticket price of $534. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Seattle to Brownsville

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

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

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

Best Price Found

$433

Fastest flight time

6h 16m

Direct flights

None

Airports in Brownsville

1 airport
The best flight deal from Seattle to Brownsville found on momondo in the last 72 hours is $433
The fastest flight from Seattle to Brownsville takes 6h 16m
There are no direct flights from Seattle to Brownsville. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Brownsville South Padre Is. Intl Airport.
There is 1 airport near Brownsville: Brownsville South Padre Is. Intl (BRO)
Search flight deals

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

    Seattle/Tacoma Intl and Brownsville South Padre Is. Intl are 2015.9 mi apart from one another. Flights usually cover this in 6h 16m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Seattle/Tacoma Intl Airport to Brownsville South Padre Is. Intl Airport refresh daily.

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

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

  • What documentation or ID do you need to fly to Brownsville South Padre Is. Intl Airport?

    The travel and health documents required for your trip to Brownsville South Padre Is. Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Brownsville South Padre Is. Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Seattle to Brownsville

Compare and see reviews for airlines that fly from Seattle to Brownsville with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $266Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $282Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights

Traveling to a place near Brownsville?

Book flights to Brownsville if you plan to visit one of these locations
South Padre Island

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Brownsville. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Brownsville from Seattle which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Seattle and Brownsville by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

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

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