$1,018 Cheap Flights from Baltimore (BWI) to São Tomé Island (TMS)

View $1,018 flight on Fri, Oct 24, 2025Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to São Tomé Island (TMS-São Tomé Intl.)

Cheap Flights from Baltimore to São Tomé Island (BWI-TMS)

Prices were available within the past 7 days and start at $1,018 for one-way flights and $1,812 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Nov 10 - Fri, Nov 14
BWI
Baltimore
TMS
São Tomé Island
$1,812 Roundtrip, found 5 days ago
$1,812
Roundtrip
found 5 days ago
Select United flight, departing Mon, Nov 10 from Baltimore to São Tomé Island, returning Fri, Nov 14, priced at $1,812 found 5 days ago
United
Mon, Nov 10 - Fri, Nov 14
BWI
Baltimore
TMS
São Tomé Island
$1,827 Roundtrip, found 5 days ago
$1,827
Roundtrip
found 5 days ago
Select United flight, departing Mon, Nov 10 from Baltimore to São Tomé Island, returning Fri, Nov 14, priced at $1,827 found 5 days ago
Flights from Baltimore (BWI) to São Tomé Island (TMS)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
São Tomé Intl.
Roundtrip price
$1,812
Distance
5847 mi

Baltimore to São Tomé Island Flights

The cheapest times to fly from Baltimore to São Tomé Island

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Baltimore to São Tomé Island are during the month of November. You can find some of the cheapest flights from Baltimore to São Tomé Island with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baltimore to São Tomé Island

Sunday is one of the best days to book for cheap flights from Baltimore to São Tomé Island: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Baltimore to São Tomé Island

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Baltimore to São Tomé Island in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,018 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Baltimore to São Tomé Island flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Baltimore to São Tomé Island airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Sao Tome Intl. Airport (TMS) cost?
Grab a cheap one-way flight from $1,018 or cheap return flight from $1,812 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Sao Tome Intl. Airport (TMS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Sao Tome Intl. Airport (TMS)?
The cheapest month to fly from BWI to TMS is November, when there's less demand. Off-peak months are usually when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Sao Tome Intl. Airport (TMS)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest BWI to TMS flight.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Sao Tome Intl. Airport (TMS)?
There are no daily nonstop flights available from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Sao Tome Intl. Airport (TMS). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from BWI to TMS?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Sao Tome Intl. Airport (TMS)?
To reach Sao Tome Intl. Airport (TMS) on time, pick a flight that takes off from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Sao Tome Intl. Airport (TMS) last-minute?
Waiting until just before your trip to book your flight from BWI to TMS generally means paying more. While it's possible to find some last-minute offers, they aren't always guaranteed. Keep your travel schedule open for the best chance of scoring a bargain.
Is it cheaper to book a BWI to TMS flight and hotel package?
Opting for a BWI to TMS flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our impressive range of stays and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Sao Tome Intl. Airport (TMS)?
In most instances, you can modify or cancel your BWI to TMS flight. However, additional charges may apply, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you need more information, visit our Customer Service portal.

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*Available to One Key members.