WAS - STT

$139 Find Cheap Flights from Washington, D.C. to Saint Thomas Island - Compare and Save

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Everything you should know

Cheapest round-trip
$281
Typical prices: $342-$710
Southwest
Sat 1/20Sat 1/27
BWI - STT • Non-stop
Cheapest one-way
$139
Typical prices: $158-$381
United Airlines
Wed 1/10
IAD - STT • Non-stop
Nonstop flights
You can fly direct with United Airlines. Average duration is 4h
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 14% average savings
Most popular
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 14% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 28% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $235 (round-trip)
Shortest trip • 6h 29m (one-way)
Insights
Insights
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We hope you love your trip to Saint Thomas Island!

Cheap Flights from Washington, D.C. to Saint Thomas Island (WAS-STT)

 

Cheap flights from Washington, D.C. to Saint Thomas Island with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Wed, Jan 20 - Wed, Jan 27
Southwest Logo
8:15 am - 1:20 pmBWI  Baltimore/Washington-STT Saint Thomas Island Cyril E King
4h 05mnonstop
Southwest Logo
3:45 pm - 7:10 pmSTT  Saint Thomas Island Cyril E King-BWI Baltimore/Washington
4h 25mnonstop
$281Southwest
Sun, Jan 31 - Thu, Feb 4
Southwest Logo
8:20 am - 1:25 pmBWI  Baltimore/Washington-STT Saint Thomas Island Cyril E King
4h 05mnonstop
Southwest Logo
2:10 pm - 8:50 pmSTT  Saint Thomas Island Cyril E King-BWI Baltimore/Washington
7h 40m1 stop Orlando
$286Southwest
Sun, Nov 8 - Thu, Nov 12
American Airlines Logo
7:16 pm - 12:16 pmBWI  Baltimore/Washington-STT Saint Thomas Island Cyril E King
16h 00m1 stop Miami
American Airlines Logo
4:53 pm - 10:58 pmSTT  Saint Thomas Island Cyril E King-BWI Baltimore/Washington
7h 05m1 stop Miami
$290American Airlines
Sun, Dec 13 - Thu, Dec 24
American Airlines Logo
7:12 pm - 12:17 pmBWI  Baltimore/Washington-STT Saint Thomas Island Cyril E King
16h 05m1 stop Miami
American Airlines Logo
1:09 pm - 10:39 pmSTT  Saint Thomas Island Cyril E King-BWI Baltimore/Washington
10h 30m1 stop Miami
$290American Airlines
Sun, Feb 21 - Wed, Feb 24
Delta Logo
6:00 am - 4:15 pmBWI  Baltimore/Washington-STT Saint Thomas Island Cyril E King
9h 15m1 stop Atlanta Hartsfield-Jackson
Delta Logo
4:15 pm - 12:26 amSTT  Saint Thomas Island Cyril E King-BWI Baltimore/Washington
9h 11m1 stop Atlanta Hartsfield-Jackson
$290Delta
Wed, Feb 17 - Wed, Feb 24
Delta Logo
8:10 am - 4:15 pmBWI  Baltimore/Washington-STT Saint Thomas Island Cyril E King
7h 05m1 stop Atlanta Hartsfield-Jackson
Delta Logo
4:15 pm - 12:26 amSTT  Saint Thomas Island Cyril E King-BWI Baltimore/Washington
9h 11m1 stop Atlanta Hartsfield-Jackson
$290Delta
Fri, Nov 27 - Fri, Dec 4
United Airlines Logo
8:56 am - 1:56 pmIAD  Washington, D.C. Dulles Intl-STT Saint Thomas Island Cyril E King
4h 00mnonstop
United Airlines Logo
1:07 pm - 4:30 pmSTT  Saint Thomas Island Cyril E King-IAD Washington, D.C. Dulles Intl
4h 23mnonstop
$378United Airlines
Tue, Jan 12 - Sun, Jan 17
United Airlines Logo
8:56 am - 1:56 pmIAD  Washington, D.C. Dulles Intl-STT Saint Thomas Island Cyril E King
4h 00mnonstop
United Airlines Logo
1:07 pm - 4:30 pmSTT  Saint Thomas Island Cyril E King-IAD Washington, D.C. Dulles Intl
4h 23mnonstop
$380United Airlines
Mon, Feb 22 - Thu, Feb 25
JetBlue Logo
8:00 am - 2:50 pmDCA  Washington, D.C. Reagan-National-STT Saint Thomas Island Cyril E King
5h 50m1 stop San Juan Luis Munoz Marin Intl
JetBlue Logo
5:01 pm - 9:59 pmSTT  Saint Thomas Island Cyril E King-DCA Washington, D.C. Reagan-National
5h 58m1 stop San Juan Luis Munoz Marin Intl
$508JetBlue
Sat, Dec 5 - Sat, Dec 19
JetBlue Logo
3:10 pm - 1:43 pmDCA  Washington, D.C. Reagan-National-STT Saint Thomas Island Cyril E King
21h 33m2 stops Fort Lauderdale San Juan Luis Munoz Marin Intl
JetBlue Logo
3:48 pm - 10:41 amSTT  Saint Thomas Island Cyril E King-DCA Washington, D.C. Reagan-National
19h 53m2 stops San Juan Luis Munoz Marin Intl Boston Logan Intl
$527JetBlue

Price, demand and travel trends for Washington, D.C. to Saint Thomas Island flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Washington, D.C. to Saint Thomas Island?

Round-trip flights from Washington, D.C. to Saint Thomas Island typically range from $342 to $710. The lowest price found in the past 5 days was $281, on Southwest.

What is the cheapest Washington, D.C. to Saint Thomas Island flight route?

Washington, D.C. Reagan-National Airport (DCA) to Saint Thomas Island (STT) is the cheapest Washington, D.C. to Saint Thomas Island route, averaging $401 round-trip. Other Washington, D.C. to Saint Thomas Island routes average $537, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Washington, D.C. to Saint Thomas Island?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Washington, D.C. to Saint Thomas Island. It’s 12% cheaper than the average day, while Saturday is the most expensive, with prices 16% higher.

What’s the cheapest month to fly from Washington, D.C. to Saint Thomas Island?

•February is the cheapest month to fly from Washington, D.C. to Saint Thomas Island at $358 round-trip.
•June ($662) and November ($640) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 84% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Washington, D.C. to Saint Thomas Island the cheapest?

Flights from Washington, D.C. to Saint Thomas Island are cheapest 5 weeks before departure. Booking in this window typically costs about 14% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice for your flight from Washington, D.C. to Saint Thomas Island

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on STT

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Stefanie Waldek

Stefanie Waldek

Expert on IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Key details for Washington, D.C. to Saint Thomas Island flights

Low season

September

Cheapest flight

$139
Beat the crowds with an average 60% drop in travelers.
The most popular month to fly with an average 41% increase in travelers.
One-way flight from Washington, D.C. Dulles Intl Airport to Saint Thomas Island

When to book flights from Washington, D.C. to Saint Thomas Island

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Saint Thomas Island based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Washington, D.C. to Saint Thomas Island flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Washington, D.C. to Saint Thomas Island?

    These are the earliest and latest flight times available from Washington, D.C. to Saint Thomas Island:

    • Earliest: departs at 8:56 am and lands at 12:56 pm
    • Latest: departs at 12:50 pm and lands at 4:50 pm.

    The flight takes about 4h.

  • What cabin classes can I book on flights from Washington, D.C. to Saint Thomas Island?

    Three cabin classes are available on flights from Washington, D.C. to Saint Thomas Island:

    • Economy Class
    • Business Class
    • First Class

  • How long is a flight from Washington, D.C. to Saint Thomas Island?

    A nonstop flight from Washington, D.C. to Saint Thomas Island takes 4h, covering 1,594 miles.

  • Do I need a passport to fly from Washington, D.C. to Saint Thomas Island?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Washington, D.C. to Saint Thomas Island flight?

    Round-trip flights from Washington, D.C. to Saint Thomas Island range from $342 to $710, with an average of $501 over the past 12 months. Anything below $342 counts as a good deal.

  • How expensive are last-minute Washington, D.C. to Saint Thomas Island flights?

    Last-minute fares on this route (booked within two weeks of departure) are 3% below the route average of $501. Booking late can sometimes save you money, but inventory is limited.

  • How much can I save by taking a layover when flying from Washington, D.C. to Saint Thomas Island?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $235 round-trip via Chicago O'Hare Intl (ORD), compared to $553 for nonstop.

  • What is the standard checked-bag allowance on flights from Washington, D.C. to Saint Thomas Island?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$80 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • How are flight departures from Washington, D.C. to Saint Thomas Island spread across the day?

    Morning is the busiest departure period on Washington, D.C. to Saint Thomas Island flights, with 100% of flights leaving in that window. Afternoon departures account for 0%, evening flights for 0%, and night flights for 0%.

  • Which airlines offer Wi-Fi on Washington, D.C. to Saint Thomas Island flights?

    JetBlue is the only airline on the Washington, D.C. to Saint Thomas Island route offering in-flight Wi-Fi. Pricing depends on fare class.

  • How are flight prices from Washington, D.C. to Saint Thomas Island looking right now?

    One-way fares from Washington, D.C. to Saint Thomas Island are currently lower than usual. Average one-way flight prices are about $150, which is 36% below the typical average for this route.

  • What car rental options are available at Saint Thomas Island Cyril E King Airport (STT)?

    Saint Thomas Island Cyril E King Airport (STT) hosts 5 major car rental companies, with daily rates starting from around $19 for economy cars. Top options include:

    • Budget
    • Thrifty
    • Dollar
    • Alamo
    • Hertz

  • Which airports can I use when flying from Washington, D.C. to Saint Thomas Island?

    Flights from Washington, D.C. to Saint Thomas Island may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Saint Thomas Island Cyril E King (STT).

  • Which airports do connecting flights from Washington, D.C. to Saint Thomas Island pass through?

    One-stop flights from Washington, D.C. to Saint Thomas Island most commonly connect through:

    • San Juan Luis Munoz Marin Intl (SJU) - 45% of one-stop connections
    • Miami (MIA) - 29% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 6% of one-stop connections
    • Charlotte Douglas (CLT) - 6% of one-stop connections

  • Can I save money by using flexible dates for flights from Washington, D.C. to Saint Thomas Island?

    Yes. Flexible dates can save you up to 25% on flights from Washington, D.C. to Saint Thomas Island. Tuesday is the cheapest departure day at $442 round-trip on average, while Saturday is the most expensive at $585, a difference of $143.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Washington, D.C. to Saint Thomas Island?

    Only United Airlines operates flights between Washington, D.C. and Saint Thomas Island.

  • How much time can I save by choosing a different layover airport from Washington, D.C. to Saint Thomas Island?

    Flying via San Juan Luis Munoz Marin Intl (SJU) gives the shortest average 1-stop total travel time at 6h 29m, compared with 7h 14m via Atlanta Hartsfield-Jackson (ATL) and 7h 16m via New York John F Kennedy Intl (JFK).

  • What popular places can I visit in Saint Thomas Island?

    Some of the most popular sights in Saint Thomas Island are Sapphire Beach, Coki Beach and 99 Steps. These are among the most viewed places in Saint Thomas Island on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Washington, D.C. to Saint Thomas Island flights?

    Among airlines operating Washington, D.C. to Saint Thomas Island flights:

    • United Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Washington, D.C. to Saint Thomas Island flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • United Airlines: a cabin bag and a checked bag in Economy Class
    • JetBlue: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Your guide to booking Washington, D.C. to Saint Thomas Island flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Saturday. On this route, Tuesday flights average $442, about $143 less than Saturday fares (24% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 5 weeks before you fly. On this route, that window historically saves about 14% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Washington, D.C. to Saint Thomas Island trip for February. Fares historically average $358 round-trip in that month - typically $304 less than the most expensive month, which is June (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Chicago O'Hare Intl Airport (ORD) can be cheaper than flying direct. The cheapest layover option averages $235 round-trip on this route - about $319 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Saint Thomas Island Cyril E King Airport.

    • Starz Hotel
    • Sunset Gardens Guesthouse
    • Island View Guesthouse

Prefer to fly direct from Washington, D.C. to Saint Thomas Island?

 
Find which airlines fly direct from Washington, D.C. to Saint Thomas Island Cyril E King Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. to Saint Thomas Island Cyril E King

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Saint Thomas Island Cyril E King to Washington, D.C.

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

More options for your flight from Washington, D.C. to Saint Thomas Island

Complete your trip to Saint Thomas Island with a hotel stay or car rental