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Cheap flights from Washington to Basseterre from $573

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Basseterre departing on 5/16. 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.
American Airlines Logo
11:09 pm - 1:20 pm
SEA
-
SKB
11h 11m
1 stop
American Airlines Logo
2:45 pm - 11:02 pm
SKB
-
SEA
11h 17m
1 stop
$842American Airlines
Thu, Sep 24 - Tue, Sep 29
American Airlines Logo
5:31 pm - 1:20 pm
SEA
-
SKB
16h 49m
2 stops
American Airlines Logo
2:45 pm - 11:08 am
SKB
-
SEA
23h 23m
2 stops
$847American Airlines
Thu, Sep 24 - Tue, Sep 29
American Airlines Logo
9:35 pm - 1:04 pm
SEA
-
SKB
12h 29m
1 stop
American Airlines Logo
2:41 pm - 12:08 am
SKB
-
SEA
12h 27m
1 stop
$902American Airlines
Fri, Jun 12 - Tue, Jun 16
American Airlines Logo
5:38 pm - 1:39 pm
SEA
-
SKB
17h 01m
2 stops
American Airlines Logo
2:41 pm - 10:49 am
SKB
-
SEA
23h 08m
2 stops
$907American Airlines
Fri, Jun 12 - Tue, Jun 16
American Airlines Logo
8:45 pm - 1:39 pm
SEA
-
SKB
13h 54m
1 stop
American Airlines Logo
2:41 pm - 12:08 am
SKB
-
SEA
12h 27m
1 stop
$942American Airlines
Wed, Jun 10 - Mon, Jun 15
American Airlines Logo
8:45 pm - 1:39 pm
SEA
-
SKB
13h 54m
1 stop
American Airlines Logo
2:41 pm - 9:27 am
SKB
-
SEA
21h 46m
2 stops
$947American Airlines
Wed, Jun 10 - Mon, Jun 15
American Airlines Logo
8:45 pm - 1:40 pm
SEA
-
SKB
13h 55m
1 stop
American Airlines Logo
2:40 pm - 12:08 am
SKB
-
SEA
12h 28m
1 stop
$962American Airlines
Fri, May 29 - Wed, Jun 3
American Airlines Logo
6:15 pm - 1:07 pm
SEA
-
SKB
15h 52m
2 stops
American Airlines Logo
2:40 pm - 9:27 am
SKB
-
SEA
21h 47m
2 stops
$967American Airlines
Fri, May 29 - Wed, Jun 3
American Airlines Logo
8:53 pm - 1:39 pm
SEA
-
SKB
13h 46m
1 stop
American Airlines Logo
2:13 pm - 10:59 pm
SKB
-
SEA
11h 46m
1 stop
$1,122American Airlines
Sat, Jun 20 - Sat, Jun 27
American Airlines Logo
8:53 pm - 1:39 pm
SEA
-
SKB
13h 46m
1 stop
American Airlines Logo
2:13 pm - 9:27 am
SKB
-
SEA
22h 14m
2 stops
$1,127American Airlines
Sat, Jun 20 - Sat, Jun 27

American Airlines flights from State of Washington to Basseterre

Our best American Airlines deals on State of Washington to Basseterre flight tickets
American Airlines
Sep 24
SEA11:09 pmSeattle/Tacoma Intl
11h 11m
1 stop
SKB1:20 pmBasseterre Robert Bradshaw Intl
Sep 29
SKB2:45 pmBasseterre Robert Bradshaw Intl
11h 17m
1 stop
SEA11:02 pmSeattle/Tacoma Intl
$842
American Airlines
Sep 24
SEA5:31 pmSeattle/Tacoma Intl
16h 49m
2 stops
SKB1:20 pmBasseterre Robert Bradshaw Intl
Sep 29
SKB2:45 pmBasseterre Robert Bradshaw Intl
23h 23m
2 stops
SEA11:08 amSeattle/Tacoma Intl
$847
American Airlines
Jun 12
SEA9:35 pmSeattle/Tacoma Intl
12h 29m
1 stop
SKB1:04 pmBasseterre Robert Bradshaw Intl
Jun 16
SKB2:41 pmBasseterre Robert Bradshaw Intl
12h 27m
1 stop
SEA12:08 amSeattle/Tacoma Intl
$902

United Airlines flights from State of Washington to Basseterre

Our best United Airlines deals on State of Washington to Basseterre flight tickets
United Airlines
May 29
SEA7:05 amSeattle/Tacoma Intl
26h 30m
3 stops
SKB12:35 pmBasseterre Robert Bradshaw Intl
Jun 3
SKB9:40 amBasseterre Robert Bradshaw Intl
31h 56m
3 stops
SEA2:36 pmSeattle/Tacoma Intl
$1,492
United Airlines
May 21
SEA5:00 pmSeattle/Tacoma Intl
40h 35m
2 stops
SKB12:35 pmBasseterre Robert Bradshaw Intl
May 25
SKB9:50 amBasseterre Robert Bradshaw Intl
31h 46m
3 stops
SEA2:36 pmSeattle/Tacoma Intl
$1,906
United Airlines
Jun 10
SEA1:00 pmSeattle/Tacoma Intl
25h 59m
2 stops
SKB5:59 pmBasseterre Robert Bradshaw Intl
Jun 15
SKB9:40 amBasseterre Robert Bradshaw Intl
31h 56m
3 stops
SEA2:36 pmSeattle/Tacoma Intl
$2,803

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Basseterre 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 May 10, 2026.
Use the filters below to find and compare flights from Washington to Basseterre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattleBasseterre

SEA - SKB

SEASKB

Seattle/Tacoma Intl

Thu 9/24

11:09 pm-1:20 pm

1 stop11h 11m

Basseterre Robert Bradshaw Intl

Tue 9/29

2:45 pm-11:02 pm

1 stop11h 17m

$842

SeattleBasseterre

SEA - SKB

SEASKB

Seattle/Tacoma Intl

Thu 9/24

5:31 pm-1:20 pm

2 stops16h 49m

Basseterre Robert Bradshaw Intl

Tue 9/29

2:45 pm-11:08 am

2 stops23h 23m

$847

SeattleBasseterre

SEA - SKB

SEASKB

Seattle/Tacoma Intl

Fri 6/12

9:35 pm-1:04 pm

1 stop12h 29m

Basseterre Robert Bradshaw Intl

Tue 6/16

2:41 pm-12:08 am

1 stop12h 27m

$902

SeattleBasseterre

SEA - SKB

SEASKB

Seattle/Tacoma Intl

Fri 6/12

5:38 pm-1:39 pm

2 stops17h 01m

Basseterre Robert Bradshaw Intl

Tue 6/16

2:41 pm-10:49 am

2 stops23h 08m

$907

SeattleBasseterre

SEA - SKB

SEASKB

Seattle/Tacoma Intl

Wed 6/10

8:45 pm-1:39 pm

1 stop13h 54m

Basseterre Robert Bradshaw Intl

Mon 6/15

2:41 pm-12:08 am

1 stop12h 27m

$942

SeattleBasseterre

SEA - SKB

SEASKB

Seattle/Tacoma Intl

Wed 6/10

8:45 pm-1:39 pm

1 stop13h 54m

Basseterre Robert Bradshaw Intl

Mon 6/15

2:41 pm-9:27 am

2 stops21h 46m

$947

SeattleBasseterre

SEA - SKB

SEASKB

Seattle/Tacoma Intl

Fri 5/29

8:45 pm-1:40 pm

1 stop13h 55m

Basseterre Robert Bradshaw Intl

Wed 6/3

2:40 pm-12:08 am

1 stop12h 28m

$962

SeattleBasseterre

SEA - SKB

SEASKB

Seattle/Tacoma Intl

Fri 5/29

6:15 pm-1:07 pm

2 stops15h 52m

Basseterre Robert Bradshaw Intl

Wed 6/3

2:40 pm-9:27 am

2 stops21h 47m

$967

SeattleBasseterre

SEA - SKB

SEASKB

Seattle/Tacoma Intl

Sat 6/20

8:53 pm-1:39 pm

1 stop13h 46m

Basseterre Robert Bradshaw Intl

Sat 6/27

2:13 pm-10:59 pm

1 stop11h 46m

$1,122

SeattleBasseterre

SEA - SKB

SEASKB

Seattle/Tacoma Intl

Sat 6/20

8:53 pm-1:39 pm

1 stop13h 46m

Basseterre Robert Bradshaw Intl

Sat 6/27

2:13 pm-9:27 am

2 stops22h 14m

$1,127

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Basseterre from

How to get the cheapest flight ticket from State of Washington to Basseterre

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 Basseterre?

If you don’t want to visit Basseterre in September, then you should wait until July to fly from State of Washington, when ticket prices are also cheap, with an average price of $0.

Can stopping save me money on State of Washington to Basseterre flights?

You could potentially save up to 27% on your flight if you consider stops on a State of Washington to Basseterre flight.

Cheap State of Washington to Basseterre flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Basseterre

Fastest flight time

14h 53m

Direct flights

None
The fastest flight from State of Washington to Basseterre takes 14h 53m
There are no direct flights from State of Washington to Basseterre. There are no popular flight routes from State of Washington to Basseterre.
Search flight deals

Frequently asked questions about flying from Washington to Basseterre

  • When did momondo last update prices for flights from Washington to Basseterre Robert Bradshaw Intl Airport?

    Prices for flights from Washington to Basseterre Robert Bradshaw Intl Airport are updated daily.

  • How many operators does momondo search for flights from Washington to Basseterre Robert Bradshaw Intl Airport?

  • How old do you have to be to fly from Washington to Basseterre Robert Bradshaw Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington to Basseterre Robert Bradshaw Intl Airport.

  • What documentation or ID do you need to fly to Basseterre Robert Bradshaw Intl Airport?

    The required travel and health documents for your Basseterre Robert Bradshaw Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Basseterre Robert Bradshaw Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from State of Washington to Basseterre

Compare and see reviews for airlines that fly from State of Washington to Basseterre with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $753Free CancellationRating
7.1
11,667 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Basseterre?

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

Can I find flights from Washington to Basseterre with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Basseterre from Washington with this policy.

How can momondo help me find flights from Washington to Basseterre?

momondo provides multiple filters to help you find the best flight to Basseterre from Washington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Basseterre from Washington. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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