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Cheap flights from Seattle to Brownsville from $175

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Brownsville departing on 3/2. 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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Find the cheapest flights from Seattle to Brownsville

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
11:57 pm - 10:17 am
SEA
-
BRO
8h 20m
1 stop
American Airlines Logo
5:40 am - 10:55 am
BRO
-
SEA
7h 15m
1 stop
$349American Airlines
Mon, Mar 2 - Wed, Mar 4
United Airlines Logo
11:35 pm - 11:19 am
SEA
-
BRO
9h 44m
1 stop
United Airlines Logo
7:15 am - 6:00 pm
BRO
-
SEA
12h 45m
2 stops
$439United Airlines
Mon, Apr 6 - Thu, Apr 9
United Airlines Logo
7:37 pm - 11:19 am
SEA
-
BRO
13h 42m
2 stops
United Airlines Logo
9:25 am - 6:00 pm
BRO
-
SEA
10h 35m
2 stops
$498United Airlines
Mon, Apr 6 - Thu, Apr 9
American Airlines Logo
6:44 am - 6:14 pm
SEA
-
BRO
9h 30m
1 stop
American Airlines Logo
10:47 am - 6:58 pm
BRO
-
SEA
10h 11m
2 stops
$519American Airlines
Mon, Mar 2 - Wed, Mar 4
United Airlines Logo
3:16 pm - 11:36 am
SEA
-
BRO
18h 20m
2 stops
United Airlines Logo
7:18 am - 3:41 pm
BRO
-
SEA
10h 23m
2 stops
$527United Airlines
Mon, Mar 2 - Wed, Mar 4
United Airlines Logo
8:56 am - 9:39 pm
SEA
-
BRO
10h 43m
2 stops
United Airlines Logo
5:25 pm - 10:48 pm
BRO
-
SEA
7h 23m
1 stop
$550United Airlines
Mon, Jun 22 - Mon, Jun 29
United Airlines Logo
5:00 am - 11:36 am
SEA
-
BRO
28h 36m
2 stops
United Airlines Logo
12:15 pm - 10:13 pm
BRO
-
SEA
11h 58m
2 stops
$558United Airlines
Mon, Mar 2 - Wed, Mar 4
Alaska Airlines Logo
12:20 am - 10:14 am
SEA
-
BRO
7h 54m
1 stop
Alaska Airlines Logo
2:47 pm - 10:54 pm
BRO
-
SEA
10h 07m
1 stop
$620Alaska Airlines
Fri, Jun 19 - Sat, Jun 27
United Airlines Logo
8:56 am - 9:39 pm
SEA
-
BRO
10h 43m
2 stops
United Airlines Logo
5:25 pm - 10:48 pm
BRO
-
SEA
7h 23m
1 stop
$637United Airlines
Mon, Jun 22 - Mon, Jun 29
American Airlines Logo
12:59 am - 10:14 am
SEA
-
BRO
7h 15m
1 stop
American Airlines Logo
5:50 am - 1:05 pm
BRO
-
SEA
9h 15m
1 stop
$709American Airlines
Sun, Jun 21 - Mon, Jun 29

American Airlines flights from Seattle to Brownsville

Our best American Airlines deals on Seattle to Brownsville flight tickets
American Airlines
Mar 15
SEA12:59 amSeattle/Tacoma Intl
7h 18m
1 stop
BRO10:17 amBrownsville South Padre Is. Intl
Mar 27
BRO8:05 pmBrownsville South Padre Is. Intl
6h 50m
1 stop
SEA12:55 amSeattle/Tacoma Intl
$329
American Airlines
Mar 2
SEA5:37 amSeattle/Tacoma Intl
6h 50m
1 stop
BRO2:27 pmBrownsville South Padre Is. Intl
Mar 4
BRO5:40 amBrownsville South Padre Is. Intl
7h 15m
1 stop
SEA10:55 amSeattle/Tacoma Intl
$349
American Airlines
May 8
SEA11:55 pmSeattle/Tacoma Intl
8h 19m
1 stop
BRO10:14 amBrownsville South Padre Is. Intl
May 11
BRO7:36 pmBrownsville South Padre Is. Intl
7h 08m
1 stop
SEA12:44 amSeattle/Tacoma Intl
$429

United Airlines flights from Seattle to Brownsville

Our best United Airlines deals on Seattle to Brownsville flight tickets
United Airlines
May 8
SEA11:59 pmSeattle/Tacoma Intl
9h 28m
1 stop
BRO11:27 amBrownsville South Padre Is. Intl
May 12
BRO12:05 pmBrownsville South Padre Is. Intl
9h 49m
2 stops
SEA7:54 pmSeattle/Tacoma Intl
$334
United Airlines
May 9
SEA8:51 amSeattle/Tacoma Intl
11h 08m
2 stops
BRO9:59 pmBrownsville South Padre Is. Intl
May 12
BRO12:05 pmBrownsville South Padre Is. Intl
9h 49m
2 stops
SEA7:54 pmSeattle/Tacoma Intl
$340
United Airlines
Apr 6
SEA11:35 pmSeattle/Tacoma Intl
9h 44m
1 stop
BRO11:19 amBrownsville South Padre Is. Intl
Apr 9
BRO9:25 amBrownsville South Padre Is. Intl
12h 20m
2 stops
SEA7:45 pmSeattle/Tacoma Intl
$480

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 January 31, 2026.
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

Mon 3/2

11:57 pm-10:17 am

1 stop8h 20m

Brownsville South Padre Is. Intl

Wed 3/4

5:40 am-10:55 am

1 stop7h 15m

$349

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Mon 4/6

11:35 pm-11:19 am

1 stop9h 44m

Brownsville South Padre Is. Intl

Thu 4/9

7:15 am-6:00 pm

2 stops12h 45m

$439

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Mon 4/6

7:37 pm-11:19 am

2 stops13h 42m

Brownsville South Padre Is. Intl

Thu 4/9

9:25 am-6:00 pm

2 stops10h 35m

$498

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Mon 3/2

6:44 am-6:14 pm

1 stop9h 30m

Brownsville South Padre Is. Intl

Wed 3/4

10:47 am-6:58 pm

2 stops10h 11m

$519

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Mon 3/2

3:16 pm-11:36 am

2 stops18h 20m

Brownsville South Padre Is. Intl

Wed 3/4

7:18 am-3:41 pm

2 stops10h 23m

$527

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Mon 6/22

8:56 am-9:39 pm

2 stops10h 43m

Brownsville South Padre Is. Intl

Mon 6/29

5:25 pm-10:48 pm

1 stop7h 23m

$550

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Mon 3/2

5:00 am-11:36 am

2 stops28h 36m

Brownsville South Padre Is. Intl

Wed 3/4

12:15 pm-10:13 pm

2 stops11h 58m

$558

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Fri 6/19

12:20 am-10:14 am

1 stop7h 54m

Brownsville South Padre Is. Intl

Sat 6/27

2:47 pm-10:54 pm

1 stop10h 07m

$620

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Mon 6/22

8:56 am-9:39 pm

2 stops10h 43m

Brownsville South Padre Is. Intl

Mon 6/29

5:25 pm-10:48 pm

1 stop7h 23m

$637

SeattleBrownsville

SEA - BRO

SEABRO

Seattle/Tacoma Intl

Sun 6/21

12:59 am-10:14 am

1 stop7h 15m

Brownsville South Padre Is. Intl

Mon 6/29

5:50 am-1:05 pm

1 stop9h 15m

$709

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 November is another great option to travel to Brownsville, with average flight prices from Seattle averaging around $386.

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

Fastest flight time

9h 02m

Direct flights

None
The fastest flight from Seattle to Brownsville takes 9h 02m
There are no direct flights from Seattle to Brownsville. There are no popular flight routes from Seattle to Brownsville.
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 9h 02m, 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 $308Free CancellationRating
7.2
11,212 reviews
Search American Airlines flights
United AirlinesPriceFrom $314Free CancellationRating
7.4
9,219 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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