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 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.

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.

$1,592 Cheap Flights from Washington, D.C. Dulles Intl Airport to São Tomé in 2025/26

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0 bags

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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to São Tomé

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10:30 pm - 6:05 pmIAD-TMS

38h 35m2 stops

8:00 pm - 3:15 pmTMS-IAD

24h 15m2 stops

$1,592TAP AIR PORTUGAL

Find Deal

ج, يناير 16 - ر, يناير 21

8:30 pm - 6:05 pmIAD-TMS

40h 35m3 stops

8:00 pm - 11:35 amTMS-IAD

44h 35m3 stops

$1,652Multiple Airlines

Find Deal

ج, يناير 16 - ر, يناير 21

5:30 pm - 6:05 pmIAD-TMS

19h 35m2 stops

8:00 pm - 3:15 pmTMS-IAD

24h 15m2 stops

$1,709TAP AIR PORTUGAL

Find Deal

س, ديسمبر 6 - ر, ديسمبر 10

4:30 pm - 5:30 pmIAD-TMS

20h 00m2 stops

8:00 pm - 8:59 pmTMS-IAD

29h 59m3 stops

$1,736Multiple Airlines

Find Deal

ج, يناير 16 - ر, يناير 21

10:00 am - 5:40 pmIAD-TMS

26h 40m3 stops

7:00 am - 8:00 amTMS-IAD

30h 00m4 stops

$1,855Ethiopian Air

Find Deal

ج, يناير 16 - ر, يناير 21

8:30 pm - 6:05 pmIAD-TMS

64h 35m3 stops

8:00 pm - 3:30 pmTMS-IAD

24h 30m2 stops

$1,881Multiple Airlines

Find Deal

ح, ديسمبر 7 - ح, ديسمبر 14

8:30 pm - 6:05 pmIAD-TMS

64h 35m3 stops

8:00 pm - 5:05 pmTMS-IAD

26h 05m3 stops

$1,885Multiple Airlines

Find Deal

ح, ديسمبر 7 - ح, ديسمبر 14

8:45 am - 6:05 pmIAD-TMS

28h 20m3 stops

8:00 pm - 3:15 pmTMS-IAD

24h 15m2 stops

$1,897TAP AIR PORTUGAL

Find Deal

س, ديسمبر 6 - ر, ديسمبر 10

8:45 am - 6:05 pmIAD-TMS

28h 20m3 stops

8:00 pm - 7:20 amTMS-IAD

40h 20m3 stops

$2,091TAP AIR PORTUGAL

Find Deal

س, ديسمبر 6 - ر, ديسمبر 10

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

Jan 16

IAD10:30 pmWashington, D.C. Dulles Intl

38h 35m

2 stops

TMS6:05 pmSao Tome Is

Jan 21

TMS8:00 pmSao Tome Is

24h 15m

2 stops

IAD3:15 pmWashington, D.C. Dulles Intl

$1,592

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

$1,709

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

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

ج 1/16

10:30 pm-6:05 pm

2 stops38h 35m

Sao Tome Is

ر 1/21

8:00 pm-3:15 pm

2 stops24h 15m

$1,592

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

ج 1/16

8:30 pm-6:05 pm

3 stops40h 35m

Sao Tome Is

ر 1/21

8:00 pm-11:35 am

3 stops44h 35m

$1,652

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

س 12/6

5:30 pm-6:05 pm

2 stops19h 35m

Sao Tome Is

ر 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

ج 1/16

4:30 pm-5:30 pm

2 stops20h 00m

Sao Tome Is

ر 1/21

8:00 pm-8:59 pm

3 stops29h 59m

$1,736

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

ج 1/16

10:00 am-5:40 pm

3 stops26h 40m

Sao Tome Is

ر 1/21

7:00 am-8:00 am

4 stops30h 00m

$1,855

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

ح 12/7

8:30 pm-6:05 pm

3 stops64h 35m

Sao Tome Is

ح 12/14

8:00 pm-3:30 pm

2 stops24h 30m

$1,881

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

ح 12/7

8:30 pm-6:05 pm

3 stops64h 35m

Sao Tome Is

ح 12/14

8:00 pm-5:05 pm

3 stops26h 05m

$1,885

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

س 12/6

8:45 am-6:05 pm

3 stops28h 20m

Sao Tome Is

ر 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

س 12/6

8:45 am-6:05 pm

3 stops28h 20m

Sao Tome Is

ر 12/10

8:00 pm-7:20 am

3 stops40h 20m

$2,091

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

Direct flights	None

There are no direct flights from Washington, D.C. Dulles Intl Airport to São Tomé. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to São Tomé.

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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 19h 35m 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.

An easier way to manage your São Tomé trip

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Cheap flights from Washington, D.C. Dulles Intl Airport to São Tomé from $1,592

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Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Price Alerts

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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to São Tomé

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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

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to São Tomé that are best for you.

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

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

Direct flights

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

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

How old do you have to be to fly 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?

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

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

How does momondo find its flight prices?

Why use momondo?

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

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

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

I’m not ready to book a flight from Washington, D.C. to São Tomé right now. Can momondo alert me if prices change?

An easier way to manage your São Tomé trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to São Tomé and Príncipe

Fly your favorite airline to São Tomé

Airlines are sorted and displayed according to clicks in the past 7 days on momondo