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São Tomé and Príncipe

$1,709+ Cheap flights from Dulles Intl (IAD) to São Tomé and Príncipe

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — TMS
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Dulles Intl to São Tomé and Príncipe

Keep the following information in mind while searching for Dulles Intl to São Tomé and Príncipe flight deals. Data was last updated September 17, 2025.

Round-trip from

$1,709
(TAP AIR PORTUGAL)
From Washington, D.C. Dulles Intl to São Tomé and Príncipe
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Find flight deals from Dulles Intl to São Tomé and Príncipe

Cheapest flights from Dulles Intl to São Tomé and Príncipe
Explore the most affordable flight options available from Dulles Intl to São Tomé and Príncipe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/14. 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 12/65:30 pmIAD - TMS
2 stops19h 35mTAP AIR PORTUGAL
Wed 12/108:00 pmTMS - IAD
2 stops24h 15mTAP AIR PORTUGAL
Deal found 9/14$1,709
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1810:20 pmIAD - TMS
1 stop26h 45mMultiple Airlines
Thu 9/2512:30 pmTMS - IAD
3 stops35h 15mMultiple Airlines
Deal found 9/17$3,471

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to São Tomé and Príncipe 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 September 17, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to São Tomé and Príncipe that are best for you.

Fly from

Dulles Intl

Fly to

São Tomé and Príncipe

Route

Depart

Return

Price

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Sat 12/6

5:30 pm-6:05 pm

2 stops19h 35m

Sao Tome Is

Wed 12/10

8:00 pm-3:15 pm

2 stops24h 15m

$1,709

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Best time to book a flight from Dulles Intl to São Tomé and Príncipe

Have a flexible travel schedule? Discover the best time to fly to São Tomé and Príncipe from Dulles Intl 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. Dulles Intl Airport to São Tomé and Príncipe
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 Dulles Intl to São Tomé and Príncipe. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to São Tomé and Príncipe?

    For as low as $1,709, TAP AIR PORTUGAL can have you in São Tomé and Príncipe from Washington, D.C. Dulles Intl Airport in 19h 35m. The distance from Washington, D.C. Dulles Intl Airport to São Tomé and Príncipe is about 5884 mi.

  • Can I find deals for flights from Dulles Intl to São Tomé and Príncipe that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to São Tomé and Príncipe flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to São Tomé and Príncipe?

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

  • Can I find deals for business class flights from Dulles Intl to São Tomé and Príncipe?

    Yes. Cheapflights offers flight deals from Dulles Intl to São Tomé and Príncipe 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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