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Cheap flights from Washington, D.C. Dulles Intl Airport to São Tomé from $1,709

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to São Tomé departing on 12/6. 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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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to São Tomé (IAD-TMS)

Cheap round-trip flights

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
sáb., dic. 6 - mié., dic. 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
$1,770TAP AIR PORTUGAL
Find Deal
sáb., dic. 6 - mié., dic. 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
sáb., dic. 6 - mié., dic. 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
$1,958TAP AIR PORTUGAL
Find Deal
sáb., dic. 6 - mié., dic. 10
TAP AIR PORTUGAL Logo
8:45 am - 6:05 pmIAD-TMS
28h 20m3 stops
TAP AIR PORTUGAL Logo
8:00 pm - 7:20 amTMS-IAD
40h 20m3 stops
$2,090TAP AIR PORTUGAL
Find Deal
sáb., dic. 6 - mié., dic. 10
TAP AIR PORTUGAL Logo
8:45 am - 6:05 pmIAD-TMS
28h 20m3 stops
TAP AIR PORTUGAL Logo
8:00 pm - 7:20 amTMS-IAD
40h 20m3 stops
$2,091TAP AIR PORTUGAL
Find Deal
sáb., dic. 6 - mié., dic. 10
TAP AIR PORTUGAL Logo
8:45 am - 6:05 pmIAD-TMS
28h 20m3 stops
TAP AIR PORTUGAL Logo
8:00 pm - 7:20 amTMS-IAD
40h 20m3 stops
$2,152TAP AIR PORTUGAL
Find Deal
sáb., dic. 6 - mié., dic. 10
Logo
5:00 pm - 5:35 pmIAD-TMS
20h 35m2 stops
Logo
1:00 pm - 7:45 pmTMS-IAD
34h 45m3 stops
$2,456
Find Deal
mar., sep. 23 - mar., oct. 7
Logo
9:20 pm - 5:40 pmIAD-TMS
16h 20m2 stops
Logo
1:10 pm - 8:55 amTMS-IAD
47h 45m3 stops
$3,838
Find Deal
lun., sep. 1 - lun., sep. 8
Logo
10:55 am - 5:40 pmIAD-TMS
26h 45m3 stops
Logo
1:10 pm - 8:55 amTMS-IAD
47h 45m3 stops
$3,971
Find Deal
lun., sep. 1 - lun., sep. 8

TAP AIR PORTUGAL flights from Washington, D.C. Dulles Intl Airport to São Tomé

Our best TAP AIR PORTUGAL deals on Washington, D.C. Dulles Intl Airport to São Tomé flight tickets
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
$1,709
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
$1,770
Find similar
TAP AIR PORTUGAL
Dec 6
IAD8:45 amWashington, D.C. Dulles Intl
28h 20m
3 stops
TMS6:05 pmSao Tome Is
Dec 10
TMS8:00 pmSao Tome Is
24h 15m
2 stops
IAD3:15 pmWashington, D.C. Dulles Intl
$1,897
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 agosto 14, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport 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

sáb. 12/6

5:30 pm-6:05 pm

2 stops19h 35m

Sao Tome Is

mié. 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

sáb. 12/6

5:30 pm-6:05 pm

2 stops19h 35m

Sao Tome Is

mié. 12/10

8:00 pm-3:15 pm

2 stops24h 15m

$1,770

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

sáb. 12/6

8:45 am-6:05 pm

3 stops28h 20m

Sao Tome Is

mié. 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

sáb. 12/6

8:45 am-6:05 pm

3 stops28h 20m

Sao Tome Is

mié. 12/10

8:00 pm-3:15 pm

2 stops24h 15m

$1,958

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

sáb. 12/6

8:45 am-6:05 pm

3 stops28h 20m

Sao Tome Is

mié. 12/10

8:00 pm-7:20 am

3 stops40h 20m

$2,090

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

sáb. 12/6

8:45 am-6:05 pm

3 stops28h 20m

Sao Tome Is

mié. 12/10

8:00 pm-7:20 am

3 stops40h 20m

$2,091

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

sáb. 12/6

8:45 am-6:05 pm

3 stops28h 20m

Sao Tome Is

mié. 12/10

8:00 pm-7:20 am

3 stops40h 20m

$2,152

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

mar. 9/23

5:00 pm-5:35 pm

2 stops20h 35m

Sao Tome Is

mar. 10/7

1:00 pm-7:45 pm

3 stops34h 45m

$2,456

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

lun. 9/1

9:20 pm-5:40 pm

2 stops16h 20m

Sao Tome Is

lun. 9/8

1:10 pm-8:55 am

3 stops47h 45m

$3,838

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

lun. 9/1

10:55 am-5:40 pm

3 stops26h 45m

Sao Tome Is

lun. 9/8

1:10 pm-8:55 am

3 stops47h 45m

$3,971

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Washington, D.C. Dulles Intl Airport to São Tomé

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to São Tomé according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to São Tomé (IAD to TMS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to São Tomé

Best Price Found

$1,709

Fastest flight time

16h 20m

Direct flights

None

Airports in São Tomé

1 airport
The best flight deal from Washington, D.C. Dulles Intl Airport to São Tomé found on momondo in the last 72 hours is $1,709
The fastest flight from Washington, D.C. Dulles Intl Airport to São Tomé takes 16h 20m
There are no direct flights from Washington, D.C. Dulles Intl Airport to São Tomé. Popular non-direct route for this connection is Washington, D.C. Dulles Intl Airport - Sao Tome Is Airport.
There is 1 airport near São Tomé: Sao Tome Is (TMS)
Search flight deals

  • How far is Washington, D.C. Dulles Intl to Sao Tome Is by plane?

    The straight-line distance from Washington, D.C. Dulles Intl to Sao Tome Is is 5886.9 mi. Typically, this will take 16h 20m by plane in normal conditions.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Sao Tome Is Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Sao Tome Is Airport are updated daily.

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Sao Tome Is Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Sao Tome Is Airport.

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

    The required travel and health documents for your Sao Tome Is Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sao Tome Is Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • How do I get Price Alerts for flights from Washington, D.C. Dulles Intl Airport to São Tomé?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Washington, D.C. Dulles Intl Airport from São Tomé. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Washington, D.C. Dulles Intl Airport to São Tomé with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to São Tomé?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to São Tomé. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington, D.C. to São Tomé with flexible booking policies on momondo?

Yes. All flights to São Tomé from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to São Tomé?

momondo helps you find the best flight between Washington, D.C. 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 Washington, D.C. to São Tomé right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to São Tomé now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to São Tomé and let you know when they change.

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