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Flights to Sao Tome Is

$1,292 Cheap flights to São Tomé

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight to São Tomé departing on 3/17. 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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0 bags

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Find the cheapest flights from the United States to São Tomé

Cheap round-trip flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
6:30 pm - 6:05 pm
IAD
-
TMS
19h 35m
2 stops
TAP AIR PORTUGAL Logo
8:00 pm - 4:15 pm
TMS
-
IAD
24h 15m
2 stops
$1,292TAP AIR PORTUGAL
Tue, Mar 17 - Wed, Mar 25
TAP AIR PORTUGAL Logo
11:30 pm - 6:05 pm
IAD
-
TMS
38h 35m
2 stops
TAP AIR PORTUGAL Logo
8:00 pm - 4:15 pm
TMS
-
IAD
24h 15m
2 stops
$1,379TAP AIR PORTUGAL
Wed, Mar 18 - Wed, Mar 25
TAP AIR PORTUGAL Logo
6:30 pm - 6:05 pm
IAD
-
TMS
19h 35m
2 stops
TAP AIR PORTUGAL Logo
8:00 pm - 4:15 pm
TMS
-
IAD
24h 15m
2 stops
$1,502TAP AIR PORTUGAL
Tue, Mar 17 - Fri, Mar 27
TAP AIR PORTUGAL Logo
11:30 pm - 6:05 pm
IAD
-
TMS
38h 35m
2 stops
TAP AIR PORTUGAL Logo
8:00 pm - 4:15 pm
TMS
-
IAD
24h 15m
2 stops
$1,509TAP AIR PORTUGAL
Wed, Mar 18 - Fri, Mar 27
Multiple Airlines Logo
11:05 pm - 6:05 pm
IAD
-
TMS
39h 00m
2 stops
Multiple Airlines Logo
8:00 pm - 4:30 pm
TMS
-
IAD
24h 30m
2 stops
$1,520Multiple Airlines
Mon, Mar 16 - Wed, Mar 25
TAP AIR PORTUGAL Logo
6:30 pm - 6:05 pm
IAD
-
TMS
19h 35m
2 stops
TAP AIR PORTUGAL Logo
8:00 pm - 4:15 pm
TMS
-
IAD
24h 15m
2 stops
$1,523TAP AIR PORTUGAL
Thu, Mar 19 - Fri, Mar 27
TAP AIR PORTUGAL Logo
11:30 pm - 6:05 pm
IAD
-
TMS
38h 35m
2 stops
TAP AIR PORTUGAL Logo
8:00 pm - 4:15 pm
TMS
-
IAD
24h 15m
2 stops
$1,530TAP AIR PORTUGAL
Fri, Mar 20 - Fri, Mar 27
Multiple Airlines Logo
11:55 pm - 6:05 pm
IAD
-
TMS
38h 10m
3 stops
Multiple Airlines Logo
8:00 pm - 4:30 pm
TMS
-
IAD
24h 30m
2 stops
$1,567Multiple Airlines
Wed, Mar 18 - Wed, Mar 25
TAP AIR PORTUGAL Logo
11:30 pm - 6:05 pm
IAD
-
TMS
38h 35m
2 stops
TAP AIR PORTUGAL Logo
8:00 pm - 4:15 pm
TMS
-
IAD
24h 15m
2 stops
$1,631TAP AIR PORTUGAL
Fri, Mar 20 - Wed, Mar 25
Multiple Airlines Logo
11:55 pm - 6:05 pm
IAD
-
TMS
38h 10m
3 stops
Multiple Airlines Logo
8:00 pm - 5:40 pm
TMS
-
IAD
49h 40m
3 stops
$1,635Multiple Airlines
Wed, Mar 18 - Wed, Mar 25

momondo Fare Finder

 
Locate flights to Sao Tome Is that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 832,500 searches and data was last updated on January 27, 2026.
Use the filters below to find and compare flights to São Tomé that are best for you.

Fly from

Route

Depart

Return

Price

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Tue 3/17

6:30 pm-6:05 pm

2 stops19h 35m

Sao Tome Is

Wed 3/25

8:00 pm-4:15 pm

2 stops24h 15m

$1,292

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Wed 3/18

11:30 pm-6:05 pm

2 stops38h 35m

Sao Tome Is

Wed 3/25

8:00 pm-4:15 pm

2 stops24h 15m

$1,379

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Tue 3/17

6:30 pm-6:05 pm

2 stops19h 35m

Sao Tome Is

Fri 3/27

8:00 pm-4:15 pm

2 stops24h 15m

$1,502

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Wed 3/18

11:30 pm-6:05 pm

2 stops38h 35m

Sao Tome Is

Fri 3/27

8:00 pm-4:15 pm

2 stops24h 15m

$1,509

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Mon 3/16

11:05 pm-6:05 pm

2 stops39h 00m

Sao Tome Is

Wed 3/25

8:00 pm-4:30 pm

2 stops24h 30m

$1,520

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Thu 3/19

6:30 pm-6:05 pm

2 stops19h 35m

Sao Tome Is

Fri 3/27

8:00 pm-4:15 pm

2 stops24h 15m

$1,523

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

Fri 3/27

8:00 pm-4:15 pm

2 stops24h 15m

$1,530

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Wed 3/18

11:55 pm-6:05 pm

3 stops38h 10m

Sao Tome Is

Wed 3/25

8:00 pm-4:30 pm

2 stops24h 30m

$1,567

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

Wed 3/25

8:00 pm-4:15 pm

2 stops24h 15m

$1,631

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Wed 3/18

11:55 pm-6:05 pm

3 stops38h 10m

Sao Tome Is

Wed 3/25

8:00 pm-5:40 pm

3 stops49h 40m

$1,635

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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São Tomé flights insights and trends

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How long does it take to fly to São Tomé?

Flight times vary depending on what airport in United States you fly out of and what airport in São Tomé you fly into. For example, flying from Los Angeles to Sao Tome Is takes 62h 55m on average. On the other hand, flying from Miami to Sao Tome Is takes 20h 30m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

Cheap São Tomé flight deals and tips

Summary info about São Tomé flight prices, duration and airlines

Best Round-Trip Price

$1,292

Fastest flight time

19h 35m
The best round-trip flight price to São Tomé from United States in the last 72 hours is $1,292 (Washington, D.C. Dulles Intl to Sao Tome Is).
Search Deals
The fastest flight to São Tomé from United States takes 19h 35m (Washington, D.C. Dulles Intl to Sao Tome Is).
Search Deals

Frequently asked questions about flying to São Tomé

When did momondo last update prices for flights to Sao Tome Is Airport?

Prices for flights to Sao Tome Is Airport are refreshed on a daily basis.

How many operators does momondo search for flights to Sao Tome Is Airport?

There are 4 operators available for flights to Sao Tome Is Airport as of January 2026.

How old do you have to be to fly 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 to Sao Tome Is Airport.

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

The travel and health documents required for your trip to Sao Tome Is Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sao Tome Is Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal 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 for you.

Can I find flights to São Tomé with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to São Tomé with this policy.

How can momondo help me find flights to São Tomé?

momondo provides multiple filters to help you find the best flight to São Tomé. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight 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 and alert you when they change.

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Popular flights to São Tomé

Popular routes according to searches in the past day on momondo
Washington, D.C. to Sao Tome Is Flightsfrom $1,379
Miami to Sao Tome Is Flightsfrom $1,921
Los Angeles to Sao Tome Is Flightsfrom $2,589