$1,548+ Cheap flights from Washington, D.C. (WAS) 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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — TMS
Jan 3 — Jan 101
1 adult, Economy
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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 Washington, D.C. to São Tomé and Príncipe
Best flights from Washington, D.C. to São Tomé and PríncipeDiscover carefully curated flight deals from Washington, D.C. to São Tomé and Príncipe that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 4, 2025.
Discover carefully curated flight deals from Washington, D.C. to São Tomé and Príncipe that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 4, 2025.
This SmartFares deal was found by Cheapflights users on 12/3. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2011:55 pmIAD - TMS
3 stops38h 10mMultiple Airlines
Sat 3/2810:25 pmTMS - IAD
2 stops45h 55mMultiple Airlines
Deal found 12/3![Multiple Airlines logo]()
$1,548
This FlightHub deal was found by Cheapflights users on 12/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2011:30 pmIAD - TMS
2 stops38h 35mTAP AIR PORTUGAL
Sat 3/2810:25 pmTMS - IAD
1 stop26h 10mTAP AIR PORTUGAL
Deal found 12/3![TAP AIR PORTUGAL logo]()
$1,574
This TAP AIR PORTUGAL deal was found by Cheapflights users on 12/3. 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 1/175:30 pmIAD - TMS
2 stops19h 35mTAP AIR PORTUGAL
Sat 1/2410:25 pmTMS - IAD
1 stop27h 35mTAP AIR PORTUGAL
Deal found 12/3![TAP AIR PORTUGAL logo]()
$1,586
This Mytrip deal was found by Cheapflights users on 12/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/178:45 pmIAD - TMS
3 stops34h 25mMultiple Airlines
Sat 1/2410:25 pmTMS - IAD
2 stops25h 20mMultiple Airlines
Deal found 12/3![Multiple Airlines logo]()
$2,089
Find flight deals from Washington, D.C. to São Tomé and Príncipe
Keep the following information in mind while searching for Washington, D.C. to São Tomé and Príncipe flight deals. Data was last updated December 4, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | Ovago 2 stars |
Round-trip from | $1,548 (SmartFares) |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington, D.C. 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 December 4, 2025.
Use the filters below to find and compare flights from Washington, D.C. to São Tomé and Príncipe that are best for you.
Fly from
Washington, D.C.
Fly to
São Tomé and Príncipe
Route
Depart
Return
Price
Washington, D.C.São Tomé
IAD - TMS
IADTMS
Washington, D.C. Dulles Intl
Fri 3/20
11:55 pm-6:05 pm
3 stops38h 10m
Sao Tome Is
Sat 3/28
10:25 pm-4:20 pm
2 stops45h 55m
$1,548
Washington, D.C.São Tomé
IAD - TMS
IADTMS
Washington, D.C. Dulles Intl
Fri 3/20
11:30 pm-6:05 pm
2 stops38h 35m
Sao Tome Is
Sat 3/28
10:25 pm-8:35 pm
1 stop26h 10m
$1,574
Washington, D.C.São Tomé
IAD - TMS
IADTMS
Washington, D.C. Dulles Intl
Sat 1/17
5:30 pm-6:05 pm
2 stops19h 35m
Sao Tome Is
Sat 1/24
10:25 pm-9:00 pm
1 stop27h 35m
$1,586
Washington, D.C.São Tomé
IAD - TMS
IADTMS
Washington, D.C. Dulles Intl
Sat 1/17
8:45 pm-12:10 pm
3 stops34h 25m
Sao Tome Is
Sat 1/24
10:25 pm-6:45 pm
2 stops25h 20m
$2,089
Best time to book a flight from Washington, D.C. to São Tomé and Príncipe
Have a flexible travel schedule? Discover the best time to fly to São Tomé and Príncipe 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 and Príncipe
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