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Cheap flights from Washington, D.C. to São Tomé and Príncipe from $1,813

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. to São Tomé and Príncipe departing on 7/3. 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 Washington, D.C. to São Tomé and Príncipe

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:20 pm - 5:45 pm
IAD
-
TMS
39h 25m
3 stops
Multiple Airlines Logo
7:40 pm - 7:25 pm
TMS
-
IAD
27h 45m
3 stops
$1,813Multiple Airlines
Fri, Jul 3 - Sun, Jul 12
TAP AIR PORTUGAL Logo
5:05 pm - 5:25 pm
IAD
-
TMS
20h 20m
1 stop
TAP AIR PORTUGAL Logo
7:40 pm - 3:10 pm
TMS
-
IAD
23h 30m
2 stops
$1,962TAP AIR PORTUGAL
Fri, Jul 3 - Sun, Jul 12
TAP AIR PORTUGAL Logo
10:50 pm - 5:45 pm
IAD
-
TMS
38h 55m
2 stops
TAP AIR PORTUGAL Logo
7:40 pm - 8:35 pm
TMS
-
IAD
28h 55m
2 stops
$1,970TAP AIR PORTUGAL
Fri, Jul 3 - Sun, Jul 12
TAP AIR PORTUGAL Logo
5:45 pm - 5:45 pm
IAD
-
TMS
20h 00m
2 stops
TAP AIR PORTUGAL Logo
7:40 pm - 3:10 pm
TMS
-
IAD
23h 30m
2 stops
$2,064TAP AIR PORTUGAL
Thu, Jul 2 - Sun, Jul 12
Multiple Airlines Logo
8:20 pm - 5:45 pm
IAD
-
TMS
41h 25m
3 stops
Multiple Airlines Logo
7:40 pm - 3:15 pm
TMS
-
IAD
23h 35m
2 stops
$2,098Multiple Airlines
Fri, Jul 3 - Sun, Jul 12
TAP AIR PORTUGAL Logo
5:05 pm - 5:45 pm
IAD
-
TMS
20h 40m
2 stops
TAP AIR PORTUGAL Logo
9:35 pm - 11:19 pm
TMS
-
IAD
29h 44m
2 stops
$2,230TAP AIR PORTUGAL
Sat, Jul 4 - Sat, Jul 11
TAP AIR PORTUGAL Logo
10:50 pm - 5:45 pm
IAD
-
TMS
38h 55m
2 stops
TAP AIR PORTUGAL Logo
9:35 pm - 11:19 pm
TMS
-
IAD
29h 44m
2 stops
$2,237TAP AIR PORTUGAL
Fri, Jul 3 - Sat, Jul 11
TAP AIR PORTUGAL Logo
5:45 pm - 5:45 pm
IAD
-
TMS
20h 00m
2 stops
TAP AIR PORTUGAL Logo
9:35 pm - 11:19 pm
TMS
-
IAD
29h 44m
2 stops
$2,332TAP AIR PORTUGAL
Thu, Jul 2 - Sat, Jul 11
Ethiopian Air Logo
10:55 am - 5:40 pm
IAD
-
TMS
26h 45m
3 stops
Ethiopian Air Logo
7:00 am - 8:55 am
TMS
-
IAD
29h 55m
4 stops
$2,607Ethiopian Air
Fri, Jul 3 - Sun, Jul 12
Multiple Airlines Logo
5:05 pm - 5:25 pm
IAD
-
TMS
20h 20m
1 stop
Multiple Airlines Logo
1:10 pm - 3:10 pm
TMS
-
IAD
30h 00m
2 stops
$2,721Multiple Airlines
Fri, Jul 3 - Mon, Jul 13

TAP AIR PORTUGAL flights from Washington, D.C. to São Tomé and Príncipe

Our best TAP AIR PORTUGAL deals on Washington, D.C. to São Tomé and Príncipe flight tickets
TAP AIR PORTUGAL
Jul 3
IAD5:05 pmWashington, D.C. Dulles Intl
20h 20m
1 stop
TMS5:25 pmSao Tome Is
Jul 12
TMS7:40 pmSao Tome Is
23h 30m
2 stops
IAD3:10 pmWashington, D.C. Dulles Intl
$1,962
TAP AIR PORTUGAL
Jul 3
IAD10:50 pmWashington, D.C. Dulles Intl
38h 55m
2 stops
TMS5:45 pmSao Tome Is
Jul 12
TMS7:40 pmSao Tome Is
28h 55m
2 stops
IAD8:35 pmWashington, D.C. Dulles Intl
$1,970
TAP AIR PORTUGAL
Jul 2
IAD5:45 pmWashington, D.C. Dulles Intl
20h 00m
2 stops
TMS5:45 pmSao Tome Is
Jul 12
TMS7:40 pmSao Tome Is
23h 30m
2 stops
IAD3:10 pmWashington, D.C. Dulles Intl
$2,064

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to São Tomé and Príncipe 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 March 3, 2026.
Use the filters below to find and compare flights from Washington, D.C. to São Tomé and Príncipe 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

Fri 7/3

10:20 pm-5:45 pm

3 stops39h 25m

Sao Tome Is

Sun 7/12

7:40 pm-7:25 pm

3 stops27h 45m

$1,813

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 7/3

5:05 pm-5:25 pm

1 stop20h 20m

Sao Tome Is

Sun 7/12

7:40 pm-3:10 pm

2 stops23h 30m

$1,962

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 7/3

10:50 pm-5:45 pm

2 stops38h 55m

Sao Tome Is

Sun 7/12

7:40 pm-8:35 pm

2 stops28h 55m

$1,970

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Thu 7/2

5:45 pm-5:45 pm

2 stops20h 00m

Sao Tome Is

Sun 7/12

7:40 pm-3:10 pm

2 stops23h 30m

$2,064

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 7/3

8:20 pm-5:45 pm

3 stops41h 25m

Sao Tome Is

Sun 7/12

7:40 pm-3:15 pm

2 stops23h 35m

$2,098

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Sat 7/4

5:05 pm-5:45 pm

2 stops20h 40m

Sao Tome Is

Sat 7/11

9:35 pm-11:19 pm

2 stops29h 44m

$2,230

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 7/3

10:50 pm-5:45 pm

2 stops38h 55m

Sao Tome Is

Sat 7/11

9:35 pm-11:19 pm

2 stops29h 44m

$2,237

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Thu 7/2

5:45 pm-5:45 pm

2 stops20h 00m

Sao Tome Is

Sat 7/11

9:35 pm-11:19 pm

2 stops29h 44m

$2,332

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 7/3

10:55 am-5:40 pm

3 stops26h 45m

Sao Tome Is

Sun 7/12

7:00 am-8:55 am

4 stops29h 55m

$2,607

Washington, D.C.São Tomé

IAD - TMS

IADTMS

Washington, D.C. Dulles Intl

Fri 7/3

5:05 pm-5:25 pm

1 stop20h 20m

Sao Tome Is

Mon 7/13

1:10 pm-3:10 pm

2 stops30h 00m

$2,721

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to São Tomé and Príncipe from

How to get the cheapest flight ticket from Washington, D.C. to São Tomé and Príncipe

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How long is the flight from Washington, D.C. to São Tomé and Príncipe?

Flight times vary depending on what airport in Washington, D.C. you fly out of and what airport in São Tomé and Príncipe you fly into. For example, flying from Washington, D.C. to São Tomé takes 16h 20m on average. On the other hand, flying from Baltimore to São Tomé takes 35h 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 Washington, D.C. to São Tomé and Príncipe flight deals and tips

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

Fastest flight time

16h 20m

Direct flights

None
The fastest flight from Washington, D.C. to São Tomé and Príncipe takes 16h 20m
There are no direct flights from Washington, D.C. to São Tomé and Príncipe. There are no popular flight routes from Washington, D.C. to São Tomé and Príncipe.
Search flight deals

  • When did momondo last update prices for flights from Washington, D.C. to São Tomé and Príncipe?

    Prices for flights from Washington, D.C. to São Tomé and Príncipe are updated daily.

  • How old do you have to be to fly from Washington, D.C. to São Tomé and Príncipe?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to São Tomé and Príncipe.

  • What documentation or ID do you need to fly to São Tomé and Príncipe?

    The required travel and health documents for your São Tomé and Príncipe 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 São Tomé and Príncipe. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

It is quick and easy to find Washington, D.C. to São Tomé and Príncipe flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to São Tomé and Príncipe that suits you.

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

All flight searches from Washington, D.C. to São Tomé and Príncipe on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to São Tomé and Príncipe from Washington, D.C..

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

Yes momondo offers price alerts on flights to São Tomé and Príncipe from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to São Tomé and Príncipe

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Popular flights according to clicks in the last 7 days on momondo
Flights to São Toméfrom $1,179