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São Tomé

$3,377+ Cheap flights from Washington, D.C. (WAS) to São Tomé (TMS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — TMS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Washington, D.C. to São Tomé

Best flights from Washington, D.C. to São Tomé
Discover carefully curated flight deals from Washington, D.C. to São Tomé that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

This Arangrant deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/295:30 pmIAD - TMS
2 stops19h 35mTAP AIR PORTUGAL
Wed 2/118:00 pmTMS - IAD
2 stops24h 15mTAP AIR PORTUGAL
Deal found 12/16$3,377
This AranGrant deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/28:50 pmIAD - TMS
2 stops15h 50mEthiopian Air
Wed 2/117:00 amTMS - IAD
4 stops30h 00mEthiopian Air
Deal found 12/16$5,506
This AranGrant deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/3010:30 pmIAD - TMS
2 stops38h 35mTAP AIR PORTUGAL
Wed 2/118:00 pmTMS - IAD
2 stops24h 15mTAP AIR PORTUGAL
Deal found 12/16$3,384
This Arangrant deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/295:30 pmIAD - TMS
2 stops19h 35mTAP AIR PORTUGAL
Sat 2/1410:25 pmTMS - IAD
1 stop27h 35mTAP AIR PORTUGAL
Deal found 12/16$3,724
This TAP AIR PORTUGAL deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/3010:30 pmIAD - TMS
2 stops38h 35mTAP AIR PORTUGAL
Sun 2/158:00 pmTMS - IAD
2 stops24h 15mTAP AIR PORTUGAL
Deal found 12/16$4,214
This Ethiopian Air deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ethiopian Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2810:00 amIAD - TMS
3 stops26h 40mEthiopian Air
Sun 2/157:00 amTMS - IAD
4 stops30h 00mEthiopian Air
Deal found 12/16$6,036
This Ethiopian Air deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ethiopian Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/210:00 amIAD - TMS
3 stops26h 40mEthiopian Air
Sun 2/157:00 amTMS - IAD
4 stops30h 00mEthiopian Air
Deal found 12/16$6,172
This TAP AIR PORTUGAL deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/315:30 pmIAD - TMS
2 stops19h 35mTAP AIR PORTUGAL
Sun 2/158:00 pmTMS - IAD
2 stops24h 15mTAP AIR PORTUGAL
Deal found 12/16$5,400
This Ethiopian Air deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ethiopian Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/3010:00 amIAD - TMS
3 stops26h 40mEthiopian Air
Wed 2/117:00 amTMS - IAD
2 stops17h 05mEthiopian Air
Deal found 12/16$6,423

Find flight deals from Washington, D.C. to São Tomé

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to São Tomé (TMS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Ovago
2 stars

Round-trip from

$1,968
(oojo)
Provider with most accurate pricing for Washington, D.C. (WAS)-Sao Tome Is flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Sao Tome Is flights.
Search Deals
From Washington, D.C. (WAS) to Sao Tome Is
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to São Tomé 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, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Washington, D.C. to São Tomé that are best for you.

Fly from

Washington, D.C.

Fly to

São Tomé

Route

Depart

Return

Price

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Thu 1/29

5:30 pm-6:05 pm

2 stops19h 35m

Sao Tome Is

Wed 2/11

8:00 pm-3:15 pm

2 stops24h 15m

$3,377

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 1/30

10:30 pm-6:05 pm

2 stops38h 35m

Sao Tome Is

Wed 2/11

8:00 pm-3:15 pm

2 stops24h 15m

$3,384

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Thu 1/29

5:30 pm-6:05 pm

2 stops19h 35m

Sao Tome Is

Sat 2/14

10:25 pm-9:00 pm

1 stop27h 35m

$3,724

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 1/30

10:30 pm-6:05 pm

2 stops38h 35m

Sao Tome Is

Sun 2/15

8:00 pm-3:15 pm

2 stops24h 15m

$4,214

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Sat 1/31

5:30 pm-6:05 pm

2 stops19h 35m

Sao Tome Is

Sun 2/15

8:00 pm-3:15 pm

2 stops24h 15m

$5,400

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Mon 2/2

8:50 pm-5:40 pm

2 stops15h 50m

Sao Tome Is

Wed 2/11

7:00 am-8:00 am

4 stops30h 00m

$5,506

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Wed 1/28

10:00 am-5:40 pm

3 stops26h 40m

Sao Tome Is

Sun 2/15

7:00 am-8:00 am

4 stops30h 00m

$6,036

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Mon 2/2

10:00 am-5:40 pm

3 stops26h 40m

Sao Tome Is

Sun 2/15

7:00 am-8:00 am

4 stops30h 00m

$6,172

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 1/30

10:00 am-5:40 pm

3 stops26h 40m

Sao Tome Is

Wed 2/11

7:00 am-7:05 pm

2 stops17h 05m

$6,423

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Compare providers for flights from Washington, D.C. to São Tomé

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Washington, D.C. to São Tomé in December.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C.-São Tomé flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C.-São Tomé flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C.-São Tomé flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-São Tomé flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C.-São Tomé flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Washington, D.C. to São Tomé

Have a flexible travel schedule? Discover the best time to fly to São Tomé from Washington, D.C. with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to São Tomé
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to São Tomé. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to São Tomé from Washington, D.C.?

    Most people fly into Sao Tome Is (TMS) if they book a flight to São Tomé from Washington, D.C.. On average, Sao Tome Is has 0 inbound flights from Washington, D.C. per day from 0 airlines. Sao Tome Is is conveniently located just 3.1 mi from São Tomé’s city center.

  • How long is the flight from Washington, D.C. to São Tomé?

    Departing from Washington, D.C. to São Tomé will take you 19h 35m. There are 5884 mi between Washington, D.C. and São Tomé.

  • Can I find deals for flights from Washington, D.C. to São Tomé that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to São Tomé flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to São Tomé?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to São Tomé.

  • Can I find deals for business class flights from Washington, D.C. to São Tomé?

    Yes. Cheapflights offers flight deals from Washington, D.C. to São Tomé by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Washington, D.C. to São Tomé

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Dulles Intl to São Tomé flights

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