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Flights to Sao Tome Is

$595 Cheap flights to São Tomé

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to São Tomé departing on 10/3. 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 the United States to São Tomé

Cheap round-trip flights

TAP AIR PORTUGAL Logo
10:20 pm - 5:35 pmIAD-TMS
39h 15m2 stops
TAP AIR PORTUGAL Logo
8:00 pm - 4:15 pmTMS-IAD
24h 15m2 stops
$1,483TAP AIR PORTUGAL
Find Deal
Mon, Oct 20 - Fri, Oct 31
Ethiopian Air Logo
9:20 pm - 5:40 pmIAD-TMS
16h 20m2 stops
Ethiopian Air Logo
7:00 am - 8:05 pmTMS-IAD
17h 05m2 stops
$1,494Ethiopian Air
Find Deal
Mon, Oct 20 - Wed, Oct 29
TAP AIR PORTUGAL Logo
5:00 pm - 5:35 pmIAD-TMS
20h 35m2 stops
TAP AIR PORTUGAL Logo
8:00 pm - 4:15 pmTMS-IAD
24h 15m2 stops
$1,496TAP AIR PORTUGAL
Find Deal
Sat, Oct 18 - Fri, Oct 31
TAP AIR PORTUGAL Logo
10:20 pm - 5:35 pmIAD-TMS
39h 15m2 stops
TAP AIR PORTUGAL Logo
10:25 pm - 10:00 pmTMS-IAD
27h 35m1 stop
$1,523TAP AIR PORTUGAL
Find Deal
Mon, Oct 20 - Sat, Nov 1
TAP AIR PORTUGAL Logo
5:00 pm - 5:35 pmIAD-TMS
20h 35m2 stops
TAP AIR PORTUGAL Logo
10:25 pm - 10:00 pmTMS-IAD
27h 35m1 stop
$1,536TAP AIR PORTUGAL
Find Deal
Sat, Oct 18 - Sat, Nov 1
Ethiopian Air Logo
10:55 am - 5:40 pmIAD-TMS
26h 45m3 stops
Ethiopian Air Logo
7:00 am - 8:05 pmTMS-IAD
17h 05m2 stops
$1,537Ethiopian Air
Find Deal
Wed, Oct 22 - Wed, Oct 29
Ethiopian Air Logo
9:20 pm - 5:40 pmIAD-TMS
16h 20m2 stops
Ethiopian Air Logo
7:00 am - 9:00 amTMS-IAD
30h 00m4 stops
$1,545Ethiopian Air
Find Deal
Mon, Oct 20 - Wed, Oct 29
Ethiopian Air Logo
9:20 pm - 5:40 pmIAD-TMS
16h 20m2 stops
Ethiopian Air Logo
7:00 am - 8:00 amTMS-IAD
30h 00m4 stops
$1,553Ethiopian Air
Find Deal
Mon, Oct 20 - Sun, Nov 2
Logo
8:45 pm - 5:35 pmIAD-TMS
40h 50m3 stops
Logo
7:40 pm - 1:30 pmTMS-IAD
45h 50m3 stops
$1,572
Find Deal
Fri, Oct 3 - Fri, Oct 10
Ethiopian Air Logo
10:55 am - 5:40 pmIAD-TMS
26h 45m3 stops
Ethiopian Air Logo
7:00 am - 8:05 pmTMS-IAD
17h 05m2 stops
$1,582Ethiopian Air
Find Deal
Fri, Oct 17 - Wed, Oct 29

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 August 21, 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

Mon 10/20

10:20 pm-5:35 pm

2 stops39h 15m

Sao Tome Is

Fri 10/31

8:00 pm-4:15 pm

2 stops24h 15m

$1,483

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Mon 10/20

9:20 pm-5:40 pm

2 stops16h 20m

Sao Tome Is

Wed 10/29

7:00 am-8:05 pm

2 stops17h 05m

$1,494

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Sat 10/18

5:00 pm-5:35 pm

2 stops20h 35m

Sao Tome Is

Fri 10/31

8:00 pm-4:15 pm

2 stops24h 15m

$1,496

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Mon 10/20

10:20 pm-5:35 pm

2 stops39h 15m

Sao Tome Is

Sat 11/1

10:25 pm-10:00 pm

1 stop27h 35m

$1,523

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Sat 10/18

5:00 pm-5:35 pm

2 stops20h 35m

Sao Tome Is

Sat 11/1

10:25 pm-10:00 pm

1 stop27h 35m

$1,536

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Wed 10/22

10:55 am-5:40 pm

3 stops26h 45m

Sao Tome Is

Wed 10/29

7:00 am-8:05 pm

2 stops17h 05m

$1,537

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Mon 10/20

9:20 pm-5:40 pm

2 stops16h 20m

Sao Tome Is

Wed 10/29

7:00 am-9:00 am

4 stops30h 00m

$1,545

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Mon 10/20

9:20 pm-5:40 pm

2 stops16h 20m

Sao Tome Is

Sun 11/2

7:00 am-8:00 am

4 stops30h 00m

$1,553

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 10/3

8:45 pm-5:35 pm

3 stops40h 50m

Sao Tome Is

Fri 10/10

7:40 pm-1:30 pm

3 stops45h 50m

$1,572

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 10/17

10:55 am-5:40 pm

3 stops26h 45m

Sao Tome Is

Wed 10/29

7:00 am-8:05 pm

2 stops17h 05m

$1,582

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 26h 45m 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 One-Way Price

$595

Best Round-Trip Price

$1,483

Fastest flight time

20h 35m
The best one-way flight price to São Tomé from United States in the last 72 hours is $595 (Los Angeles to Sao Tome Is).
Search Deals
The best round-trip flight price to São Tomé from United States in the last 72 hours is $1,483 (Washington, D.C. Dulles Intl to Sao Tome Is).
Search Deals
The fastest flight to São Tomé from United States takes 20h 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 3 operators available for flights to Sao Tome Is Airport as of August 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 $1,572
Los Angeles to Sao Tome Is Flightsfrom $1,700
Miami to Sao Tome Is Flightsfrom $3,018