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Cheap flights from District of Columbia to São Tomé from $1,426

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to São Tomé departing on 3/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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TAP AIR PORTUGAL Logo
10:30 pm - 6:05 pmIAD-TMS
38h 35m2 stops
TAP AIR PORTUGAL Logo
10:25 pm - 10:00 pmTMS-IAD
27h 35m1 stop
$1,426TAP AIR PORTUGAL
Find Deal
Fri, Mar 6 - Sat, Mar 14
Multiple Airlines Logo
5:45 pm - 6:05 pmIAD-TMS
43h 20m3 stops
Multiple Airlines Logo
10:25 pm - 3:35 pmTMS-IAD
45h 10m2 stops
$1,602Multiple Airlines
Find Deal
Fri, Mar 6 - Sat, Mar 14
Multiple Airlines Logo
9:00 am - 5:30 pmIAD-TMS
27h 30m2 stops
Multiple Airlines Logo
10:25 pm - 3:35 pmTMS-IAD
45h 10m2 stops
$1,649Multiple Airlines
Find Deal
Fri, Mar 6 - Sat, Mar 14
TAP AIR PORTUGAL Logo
5:30 pm - 6:05 pmIAD-TMS
19h 35m2 stops
TAP AIR PORTUGAL Logo
8:00 pm - 3:15 pmTMS-IAD
24h 15m2 stops
$1,708TAP AIR PORTUGAL
Find Deal
Sat, Dec 6 - Wed, Dec 10
TAP AIR PORTUGAL Logo
5:30 pm - 6:05 pmIAD-TMS
19h 35m2 stops
TAP AIR PORTUGAL Logo
8:00 pm - 3:15 pmTMS-IAD
24h 15m2 stops
$1,709TAP AIR PORTUGAL
Find Deal
Sat, Dec 6 - Wed, Dec 10
TAP AIR PORTUGAL Logo
8:45 am - 6:05 pmIAD-TMS
28h 20m3 stops
TAP AIR PORTUGAL Logo
8:00 pm - 3:15 pmTMS-IAD
24h 15m2 stops
$1,896TAP AIR PORTUGAL
Find Deal
Sat, Dec 6 - Wed, Dec 10
TAP AIR PORTUGAL Logo
8:45 am - 6:05 pmIAD-TMS
28h 20m3 stops
TAP AIR PORTUGAL Logo
8:00 pm - 3:15 pmTMS-IAD
24h 15m2 stops
$1,897TAP AIR PORTUGAL
Find Deal
Sat, Dec 6 - Wed, Dec 10
TAP AIR PORTUGAL Logo
5:30 pm - 6:05 pmIAD-TMS
19h 35m2 stops
TAP AIR PORTUGAL Logo
8:00 pm - 3:15 pmTMS-IAD
24h 15m2 stops
$2,055TAP AIR PORTUGAL
Find Deal
Sat, Dec 6 - Wed, Dec 10
Multiple Airlines Logo
5:45 am - 5:30 pmIAD-TMS
30h 45m3 stops
Multiple Airlines Logo
10:25 pm - 4:35 pmTMS-IAD
46h 10m3 stops
$2,075Multiple Airlines
Find Deal
Fri, Mar 6 - Sat, Mar 14
TAP AIR PORTUGAL Logo
8:45 am - 6:05 pmIAD-TMS
28h 20m3 stops
TAP AIR PORTUGAL Logo
8:00 pm - 9:25 pmTMS-IAD
30h 25m3 stops
$2,090TAP AIR PORTUGAL
Find Deal
Sat, Dec 6 - Wed, Dec 10

TAP AIR PORTUGAL flights from District of Columbia to São Tomé

Our best TAP AIR PORTUGAL deals on District of Columbia to São Tomé flight tickets
TAP AIR PORTUGAL
Mar 4
IAD10:30 pmWashington, D.C. Dulles Intl
38h 35m
2 stops
TMS6:05 pmSao Tome Is
Mar 11
TMS8:00 pmSao Tome Is
24h 15m
2 stops
IAD4:15 pmWashington, D.C. Dulles Intl
$1,213
Find similar
TAP AIR PORTUGAL
Mar 6
IAD10:30 pmWashington, D.C. Dulles Intl
38h 35m
2 stops
TMS6:05 pmSao Tome Is
Mar 14
TMS10:25 pmSao Tome Is
27h 35m
1 stop
IAD10:00 pmWashington, D.C. Dulles Intl
$1,426
Find similar
TAP AIR PORTUGAL
Dec 6
IAD5:30 pmWashington, D.C. Dulles Intl
19h 35m
2 stops
TMS6:05 pmSao Tome Is
Dec 10
TMS8:00 pmSao Tome Is
24h 15m
2 stops
IAD3:15 pmWashington, D.C. Dulles Intl
$1,708
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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, momondo users made 832,500 searches. Data last updated November 13, 2025.
Use the filters below to find and compare flights from District of Columbia to São Tomé that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 3/6

10:30 pm-6:05 pm

2 stops38h 35m

Sao Tome Is

Sat 3/14

10:25 pm-10:00 pm

1 stop27h 35m

$1,426

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 3/6

5:45 pm-6:05 pm

3 stops43h 20m

Sao Tome Is

Sat 3/14

10:25 pm-3:35 pm

2 stops45h 10m

$1,602

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 3/6

9:00 am-5:30 pm

2 stops27h 30m

Sao Tome Is

Sat 3/14

10:25 pm-3:35 pm

2 stops45h 10m

$1,649

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

$1,708

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

Sat 12/6

8:45 am-6:05 pm

3 stops28h 20m

Sao Tome Is

Wed 12/10

8:00 pm-3:15 pm

2 stops24h 15m

$1,896

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Sat 12/6

8:45 am-6:05 pm

3 stops28h 20m

Sao Tome Is

Wed 12/10

8:00 pm-3:15 pm

2 stops24h 15m

$1,897

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

$2,055

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 3/6

5:45 am-5:30 pm

3 stops30h 45m

Sao Tome Is

Sat 3/14

10:25 pm-4:35 pm

3 stops46h 10m

$2,075

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Sat 12/6

8:45 am-6:05 pm

3 stops28h 20m

Sao Tome Is

Wed 12/10

8:00 pm-9:25 pm

3 stops30h 25m

$2,090

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap District of Columbia to São Tomé flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to São Tomé

Direct flights

None
There are no direct flights from District of Columbia to São Tomé. There are no popular flight routes from District of Columbia to São Tomé.
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  • When did momondo last update prices for flights from District of Columbia to Sao Tome Is Airport?

    Prices for flights from District of Columbia to Sao Tome Is Airport refresh daily.

  • How old do you have to be to fly from District of Columbia to Sao Tome Is Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Sao Tome Is Airport.

  • What documentation or ID do you need to fly to Sao Tome Is Airport?

    The travel and health documents you'll need for your trip to Sao Tome Is Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Sao Tome Is Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from District of Columbia to São Tomé?

    Search flight deals from District of Columbia to São Tomé. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from District of Columbia to São Tomé with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to São Tomé?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from District of Columbia to São Tomé for you.

Can I find flights from District of Columbia to São Tomé with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for District of Columbia to São Tomé flights to just show those with flexible booking policies.

How can momondo help me find flights from District of Columbia to São Tomé?

momondo helps you find the best flight between District of Columbia and São Tomé by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from District of Columbia to São Tomé right now. Can momondo alert me if prices change?

If you are simply researching potential flights to São Tomé, momondo offers a useful price alert feature which will track prices for flights to São Tomé from District of Columbia and alert you when they change.

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