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Flights to Sao Tome Is

$1,660 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 6/5. 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
10:35 pm - 5:40 pm
IAD
-
TMS
39h 05m2 stops
TAP AIR PORTUGAL Logo
9:35 pm - 3:05 pm
TMS
-
IAD
21h 30m1 stop
$1,660TAP AIR PORTUGAL
Fri, Jun 5 - Sat, Jun 13
Multiple Airlines Logo
9:45 am - 5:25 pm
IAD
-
TMS
27h 40m2 stops
Multiple Airlines Logo
9:35 pm - 3:30 pm
TMS
-
IAD
45h 55m2 stops
$1,744Multiple Airlines
Fri, Jun 5 - Sat, Jun 13
Multiple Airlines Logo
4:10 pm - 5:40 pm
IAD
-
TMS
45h 30m3 stops
Multiple Airlines Logo
9:35 pm - 8:32 pm
TMS
-
IAD
26h 57m2 stops
$1,754Multiple Airlines
Fri, Jun 5 - Sat, Jun 13
TAP AIR PORTUGAL Logo
5:55 pm - 5:25 pm
IAD
-
TMS
19h 30m1 stop
TAP AIR PORTUGAL Logo
9:35 pm - 8:35 pm
TMS
-
IAD
27h 00m1 stop
$1,878TAP AIR PORTUGAL
Fri, Jun 5 - Sat, Jun 13
TAP AIR PORTUGAL Logo
8:23 am - 5:40 pm
IAD
-
TMS
29h 17m3 stops
TAP AIR PORTUGAL Logo
7:40 pm - 3:05 pm
TMS
-
IAD
23h 25m2 stops
$1,928TAP AIR PORTUGAL
Sat, Apr 18 - Wed, Apr 22
Multiple Airlines Logo
9:50 pm - 5:40 pm
IAD
-
TMS
15h 50m2 stops
Multiple Airlines Logo
1:10 pm - 8:55 am
TMS
-
IAD
47h 45m3 stops
$1,968Multiple Airlines
Mon, Mar 16 - Mon, Mar 30
Multiple Airlines Logo
11:00 am - 5:40 pm
IAD
-
TMS
26h 40m3 stops
Multiple Airlines Logo
1:10 pm - 8:55 am
TMS
-
IAD
47h 45m3 stops
$2,039Multiple Airlines
Mon, Mar 16 - Mon, Mar 30
TAP AIR PORTUGAL Logo
10:35 pm - 5:40 pm
IAD
-
TMS
39h 05m2 stops
TAP AIR PORTUGAL Logo
9:35 pm - 8:33 pm
TMS
-
IAD
50h 58m2 stops
$2,096TAP AIR PORTUGAL
Fri, Jun 5 - Sat, Jun 13
TAP AIR PORTUGAL Logo
8:23 am - 5:40 pm
IAD
-
TMS
29h 17m3 stops
TAP AIR PORTUGAL Logo
7:40 pm - 9:04 pm
TMS
-
IAD
29h 24m3 stops
$2,122TAP AIR PORTUGAL
Sat, Apr 18 - Wed, Apr 22
Multiple Airlines Logo
9:45 am - 5:25 pm
IAD
-
TMS
27h 40m3 stops
Multiple Airlines Logo
9:35 pm - 7:00 pm
TMS
-
IAD
25h 25m3 stops
$2,234Multiple Airlines
Fri, Jun 5 - Sat, Jun 13

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 December 25, 2025.
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

Fri 6/5

10:35 pm-5:40 pm

2 stops39h 05m

Sao Tome Is

Sat 6/13

9:35 pm-3:05 pm

1 stop21h 30m

$1,660

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 6/5

9:45 am-5:25 pm

2 stops27h 40m

Sao Tome Is

Sat 6/13

9:35 pm-3:30 pm

2 stops45h 55m

$1,744

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 6/5

4:10 pm-5:40 pm

3 stops45h 30m

Sao Tome Is

Sat 6/13

9:35 pm-8:32 pm

2 stops26h 57m

$1,754

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 6/5

5:55 pm-5:25 pm

1 stop19h 30m

Sao Tome Is

Sat 6/13

9:35 pm-8:35 pm

1 stop27h 00m

$1,878

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Sat 4/18

8:23 am-5:40 pm

3 stops29h 17m

Sao Tome Is

Wed 4/22

7:40 pm-3:05 pm

2 stops23h 25m

$1,928

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Mon 3/16

9:50 pm-5:40 pm

2 stops15h 50m

Sao Tome Is

Mon 3/30

1:10 pm-8:55 am

3 stops47h 45m

$1,968

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Mon 3/16

11:00 am-5:40 pm

3 stops26h 40m

Sao Tome Is

Mon 3/30

1:10 pm-8:55 am

3 stops47h 45m

$2,039

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 6/5

10:35 pm-5:40 pm

2 stops39h 05m

Sao Tome Is

Sat 6/13

9:35 pm-8:33 pm

2 stops50h 58m

$2,096

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Sat 4/18

8:23 am-5:40 pm

3 stops29h 17m

Sao Tome Is

Wed 4/22

7:40 pm-9:04 pm

3 stops29h 24m

$2,122

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 6/5

9:45 am-5:25 pm

3 stops27h 40m

Sao Tome Is

Sat 6/13

9:35 pm-7:00 pm

3 stops25h 25m

$2,234

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to São Tomé from

São Tomé flights insights and trends

Explore insights for your São Tomé flight to craft the best travel plan

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 40h 35m on average. On the other hand, flying from Miami to Sao Tome Is takes 37h 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

$1,660

Fastest flight time

37h 30m
The best round-trip flight price to São Tomé from United States in the last 72 hours is $1,660 (Washington, D.C. Dulles Intl to Sao Tome Is).
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The fastest flight to São Tomé from United States takes 37h 30m (Miami to Sao Tome Is).
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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 December 2025.

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 $1,660
Miami to Sao Tome Is Flightsfrom $2,832
Los Angeles to Sao Tome Is Flightsfrom $1,496