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Cheap flights from Seattle to San Juan from $310

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 San Juan departing on 4/15. 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
1 adult, Economy, 0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
10:20 pm - 2:39 pm
SEA
-
CPX
13h 19m
2 stops
JetBlue Logo
3:05 pm - 10:33 am
CPX
-
SEA
22h 28m
2 stops
$1,145JetBlue
Mon, Jun 22 - Tue, Jun 30
United Airlines Logo
11:10 pm - 5:21 pm
SEA
-
CPX
15h 11m
2 stops
United Airlines Logo
10:48 am - 11:45 pm
CPX
-
SEA
15h 57m
2 stops
$1,558United Airlines
Thu, Aug 20 - Wed, Sep 2
United Airlines Logo
12:10 pm - 5:21 pm
SEA
-
CPX
26h 11m
3 stops
United Airlines Logo
10:48 am - 11:45 pm
CPX
-
SEA
15h 57m
2 stops
$1,708United Airlines
Thu, Aug 20 - Wed, Sep 2

United Airlines flights from Seattle to Culebra

Our best United Airlines deals on Seattle to Culebra flight tickets
United Airlines
Aug 20
SEA11:56 pmSeattle/Tacoma Intl
14h 25m
2 stops
CPX5:21 pmCulebra
Sep 8
CPX10:48 amCulebra
15h 57m
2 stops
SEA11:45 pmSeattle/Tacoma Intl
$1,558
United Airlines
Aug 20
SEA12:10 pmSeattle/Tacoma Intl
26h 11m
3 stops
CPX5:21 pmCulebra
Sep 8
CPX10:48 amCulebra
15h 57m
2 stops
SEA11:45 pmSeattle/Tacoma Intl
$1,708

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Culebra 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 March 13, 2026.
Use the filters below to find and compare flights from Seattle to Culebra that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleCulebra

SEA - CPX

SEACPX

Seattle/Tacoma Intl

Mon 6/22

10:20 pm-2:39 pm

2 stops13h 19m

Culebra

Tue 6/30

3:05 pm-10:33 am

2 stops22h 28m

$1,145
Quickest round-trip

SeattleCulebra

SEA - CPX

SEACPX

Seattle/Tacoma Intl

Thu 8/20

11:10 pm-5:21 pm

2 stops15h 11m

Culebra

Wed 9/2

10:48 am-11:45 pm

2 stops15h 57m

$1,558

SeattleCulebra

SEA - CPX

SEACPX

Seattle/Tacoma Intl

Thu 8/20

12:10 pm-5:21 pm

3 stops26h 11m

Culebra

Wed 9/2

10:48 am-11:45 pm

2 stops15h 57m

$1,708
Cheapest one-way

SeattleCulebra

SEA - CPX

SEACPX

Seattle/Tacoma Intl

Wed 4/15

8:07 pm-10:10 am

3 stops59h 03m

$310
Quickest one-way

SeattleCulebra

SEA - CPX

SEACPX

Seattle/Tacoma Intl

Wed 4/15

10:55 pm-4:13 pm

2 stops14h 18m

$538

SeattleCulebra

SEA - CPX

SEACPX

Seattle/Tacoma Intl

Wed 4/15

10:55 pm-4:13 pm

2 stops14h 18m

$779

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to San Juan from

How to get the cheapest flight ticket from Seattle to Culebra

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 airline that flies from Seattle/Tacoma Intl to Culebra?

United Airlines is the most popular carrier operating from Seattle/Tacoma Intl to Culebra

What airlines fly to Culebra?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Culebra from Seattle according to our data. American Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Culebra. Keep in mind that there are 8 different airlines that fly to Culebra on a routine basis, so you have a few additional options to choose from.

When to book flights from Seattle to Culebra

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

Cheap Seattle to Culebra (SEA to CPX) flight deals and tips

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

Fastest flight time

13h 19m

Direct flights

None
The fastest flight from Seattle to Culebra takes 13h 19m
There are no direct flights from Seattle to Culebra. There are no popular flight routes from Seattle to Culebra.
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  • How far is Seattle/Tacoma Intl to Culebra by plane?

    Culebra is 3765.5 mi away from Seattle/Tacoma Intl. 13h 19m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Culebra Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Culebra Airport refresh daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Culebra Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Culebra Airport.

  • What documentation or ID do you need to fly to Culebra Airport?

    The necessary travel and health documents for your Culebra Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

Finding the right flight to Culebra from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Culebra quick and easy, saving you time and money.

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

Flights from Seattle to Culebra with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Seattle to Culebra flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Seattle to Culebra flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Sun 4/12
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