$1,110 Cheap Swiss International Air Lines flights Bucharest (OTP) to Washington (IAD)

View $1,110 flight on Thu, Nov 6, 2025Opens in a new window

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$1,110 Cheap Swiss International Air Lines flights Bucharest (OTP) to Washington (IAD)

Prices were available within the past 7 days and start at $1,110 for one-way flights and $442 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Wed, Oct 1 - Sun, Mar 29
OTP
Bucharest
IAD
Washington
$442 Roundtrip, found 1 hour ago
$442
Roundtrip
found 1 hour ago
Select Swiss International Air Lines flight, departing Wed, Oct 1 from Bucharest to Washington, returning Sun, Mar 29, priced at $442 found 1 hour ago
Flights from Bucharest (OTP) to Washington (IAD)
Origin airport
Henri Coanda Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Emirates, ITA Airways, KLM, Lufthansa, Qatar Airways, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United
Popular airline
Lufthansa
Distance
4963 mi

Frequently asked questions

How much is a SWISS flight from Henri Coanda Intl. Airport (OTP) to Washington Dulles Intl. Airport (IAD)?
Landing cheap one-way SWISS flights from OTP to IAD from $1,110 on Expedia is easy — just filter by "Price (lowest to highest)." Alternatively, check out our budget-friendly return fares from $442 for your next exciting getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from OTP to IAD with SWISS?
SWISS flights to Washington are typically more affordable in the low-season months of January and February. Whether you're after a return or one-way ticket, you could find a better deal then.
What is the cheapest time to book flights from Henri Coanda Intl. Airport (OTP) to Washington Dulles Intl. Airport (IAD) with SWISS?
To find affordable flights from OTP to IAD with SWISS, begin your search about one month before your planned departure. You can save 17% when you lock in your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another tip? Booking on Sunday can lead to average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does SWISS fly nonstop from Henri Coanda Intl. Airport (OTP) to Washington Dulles Intl. Airport (IAD)?
To see if there's a direct route from OTP to IAD with SWISS or other airlines, select the "Nonstop" filter when searching for tickets.
What is the earliest SWISS flight from OTP to IAD?
Sort your results by "Morning" and "Early Morning" to see the earliest flights from OTP to IAD. Taking off early means you're less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does SWISS fly into in Washington?
Board a SWISS flight from Henri Coanda Intl. Airport (OTP) to Washington, and you'll likely come in to Washington Dulles Intl. Airport (IAD). This is the airline's main hub here.
What kind of luggage can I take on a SWISS flight from Henri Coanda Intl. Airport (OTP) to Washington Dulles Intl. Airport (IAD)?
On a standard economy flight with SWISS from OTP to IAD, passengers can bring 1 checked-in bag up to 50 lb with dimensions not exceeding 62 inches in total. For carry-on, you're allowed 1 cabin bag weighing up to 17 lb and measuring no more than 22 inches x 21 inches x 5 inches. Size and weight restrictions may differ based on the airfare type and cabin class you're in. To make sure you won't face additional fees at the airport, double-check your SWISS booking or go to the airline's website before you start packing.
Why fly with SWISS from OTP to IAD?
Taking off from OTP to IAD with SWISS comes with a range of perks, including a 4-star airline rating and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to redeem on select future travel purchases. That's on top of the Swiss Miles & More points you can earn with SWISS.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my SWISS flight from Henri Coanda Intl. Airport (OTP) to Washington Dulles Intl. Airport (IAD)?
Changes are often free within 24 hours of booking, but your airline may charge you after that time. For further details about altering your flights, go to your "Trips," select your flight and click on "Manage Booking." If you'd like the freedom to change your plans without being charged, apply the "Changes included" or "No cancel fee" filter when organizing your trip.

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*Available to One Key members.