$1,348+ Cheap flights from Dulles Intl (IAD) to São Tomé and Príncipe
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/26. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — TMS
Oct 16 — Oct 231
1 adult, Economy
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Find cheap flights from Dulles Intl to São Tomé and Príncipe with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 16, 2025.
Round-trip from | $1,709 (TAP AIR PORTUGAL) |
|---|---|
One-way from | $1,348 (SmartFares) |
Find flight deals from Dulles Intl to São Tomé and Príncipe
Cheapest flights from Dulles Intl to São Tomé and PríncipeExplore 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 16, 2025.
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 16, 2025.
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/15. 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 9/15![TAP AIR PORTUGAL logo]()
$1,709
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 16, 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
Washington, D.C.São Tomé
IAD - TMS
IADTMS
Washington, D.C. Dulles Intl
Fri 12/26
8:30 pm-6:05 pm
3 stops40h 35m
$1,348
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.