$730 Cheap Flights from Washington (IAD) to Bissau (OXB)

View $730 flight on Mon, Dec 1, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Bissau (OXB-Osvaldo Vieira Intl.)

Cheap Flights from Washington to Bissau (IAD-OXB)

Prices were available within the past 7 days and start at $730 for one-way flights and $1,143 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Tue, Nov 25 - Tue, Dec 2
IAD
Washington
OXB
Bissau
$1,143 Roundtrip, found 5 days ago
$1,143
Roundtrip
found 5 days ago
Select Turkish Airlines flight, departing Tue, Nov 25 from Washington to Bissau, returning Tue, Dec 2, priced at $1,143 found 5 days ago
Turkish Airlines
Sun, Feb 15 - Tue, Mar 3
IAD
Washington
OXB
Bissau
$1,163 Roundtrip, found 4 days ago
$1,163
Roundtrip
found 4 days ago
Select Turkish Airlines flight, departing Sun, Feb 15 from Washington to Bissau, returning Tue, Mar 3, priced at $1,163 found 4 days ago
TAP Portugal
Sun, Feb 15 - Tue, Mar 3
IAD
Washington
OXB
Bissau
$1,214 Roundtrip, found 4 days ago
$1,214
Roundtrip
found 4 days ago
Select TAP Portugal flight, departing Sun, Feb 15 from Washington to Bissau, returning Tue, Mar 3, priced at $1,214 found 4 days ago
Royal Air Maroc
Fri, Oct 24 - Sun, Oct 26
IAD
Washington
OXB
Bissau
$1,269 Roundtrip, found 2 days ago
$1,269
Roundtrip
found 2 days ago
Select Royal Air Maroc flight, departing Fri, Oct 24 from Washington to Bissau, returning Sun, Oct 26, priced at $1,269 found 2 days ago
Air Canada
Sun, Feb 15 - Tue, Mar 3
IAD
Washington
OXB
Bissau
$1,324 Roundtrip, found 4 days ago
$1,324
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sun, Feb 15 from Washington to Bissau, returning Tue, Mar 3, priced at $1,324 found 4 days ago
Air Canada
Sun, Feb 15 - Tue, Mar 3
IAD
Washington
OXB
Bissau
$1,328 Roundtrip, found 4 days ago
$1,328
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sun, Feb 15 from Washington to Bissau, returning Tue, Mar 3, priced at $1,328 found 4 days ago
Air Canada
Sun, Feb 15 - Tue, Mar 3
IAD
Washington
OXB
Bissau
$1,330 Roundtrip, found 4 days ago
$1,330
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sun, Feb 15 from Washington to Bissau, returning Tue, Mar 3, priced at $1,330 found 4 days ago
Air Canada
Sun, Feb 15 - Tue, Mar 3
IAD
Washington
OXB
Bissau
$1,332 Roundtrip, found 4 days ago
$1,332
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sun, Feb 15 from Washington to Bissau, returning Tue, Mar 3, priced at $1,332 found 4 days ago
Swiss International Air Lines
Sun, Feb 15 - Tue, Mar 3
IAD
Washington
OXB
Bissau
$1,336 Roundtrip, found 4 days ago
$1,336
Roundtrip
found 4 days ago
Select Swiss International Air Lines flight, departing Sun, Feb 15 from Washington to Bissau, returning Tue, Mar 3, priced at $1,336 found 4 days ago
Air Canada
Sun, Feb 15 - Tue, Mar 3
IAD
Washington
OXB
Bissau
$1,340 Roundtrip, found 4 days ago
$1,340
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sun, Feb 15 from Washington to Bissau, returning Tue, Mar 3, priced at $1,340 found 4 days ago

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Osvaldo Vieira Intl. Airport (OXB) cost?
Lock in a cheap one-way flight from $730 or cheap return flight from $1,143 from Washington Dulles Intl. Airport (IAD) to Osvaldo Vieira Intl. Airport (OXB) 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 Washington Dulles Intl. Airport (IAD) to Osvaldo Vieira Intl. Airport (OXB)?
November is the most affordable month to fly from IAD to OXB. Avoiding peak travel times is often the key to finding a great deal.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Osvaldo Vieira Intl. Airport (OXB)?
To find the cheapest airline flying from IAD to OXB, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Osvaldo Vieira Intl. Airport (OXB)?
Nonstop flights from Washington Dulles Intl. Airport (IAD) to Osvaldo Vieira Intl. Airport (OXB) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAD to OXB?
You'll usually 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 Washington Dulles Intl. Airport (IAD) to Osvaldo Vieira Intl. Airport (OXB)?
To touch down at Osvaldo Vieira Intl. Airport (OXB) without delays, opt for a flight that leaves Washington Dulles Intl. Airport (IAD) 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 Washington Dulles Intl. Airport (IAD) to Osvaldo Vieira Intl. Airport (OXB) last-minute?
Waiting until just before your departure to book a ticket from IAD to OXB generally means paying more. Although you may find some last-minute deals, there's no guarantee. Be flexible with your travel plans to maximize your chances of scoring a bargain.
Is it cheaper to book an IAD to OXB flight and hotel package?
You can save money by booking an IAD to OXB flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. After selecting your ideal accommodations and flights, consider other add-ons like car rentals, tours and activities.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Osvaldo Vieira Intl. Airport (OXB)?
Usually, it's possible to reschedule or cancel your IAD to OXB flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Osvaldo Vieira Intl.
Roundtrip price
$1,143
Distance
4194 mi

Book with confidence

Washington to Bissau Flights

The cheapest times to fly from Washington to Bissau

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 Washington to Bissau are during the month of November. You can find some of the cheapest flights from Washington to Bissau with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Bissau

Sunday is one of the best days to book for cheap flights from Washington to Bissau: 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 Washington to Bissau

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 Washington to Bissau in 2025. You can also book with separate airlines for your outbound and return journeys, from $730 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 Washington to Bissau 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 Washington to Bissau 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.

 

Washington to Bissau Flights
*Available to One Key members.