Cheap Flights from Seattle (SEA) to Olgii (ULG)

Popular airlines from Seattle-Tacoma International Airport (SEA) to Olgii, Mongolia (ULG)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Olgii Airport (ULG) cost?
Lock in a cheap one-way flight or cheap return flight from Seattle - Tacoma Intl. Airport (SEA) to Olgii Airport (ULG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Olgii Airport (ULG)?
Planning your getaway for can help you save, as it's the cheapest month for flights between SEA and ULG. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Olgii Airport (ULG)?
To find the cheapest airline that'll fly you from SEA to ULG, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Olgii Airport (ULG)?
You'll have to take a flight with a layover if you're traveling from Seattle - Tacoma Intl. Airport (SEA) to Olgii Airport (ULG). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from SEA to ULG?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Olgii Airport (ULG)?
To touch down at Olgii Airport (ULG) on schedule, book a flight that leaves from Seattle - Tacoma Intl. Airport (SEA) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Seattle - Tacoma Intl. Airport (SEA) to Olgii Airport (ULG) last-minute?
Holding off until just before your trip to book a ticket from SEA to ULG often results in higher prices. While you might find some last-minute offers, there's no guarantee. Keep your travel schedule open for a better chance of landing a bargain.
Is it cheaper to book a SEA to ULG flight and hotel package?
Opting for a SEA to ULG flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Choose from our impressive range of hotels and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Olgii Airport (ULG)?
If you booked your SEA to ULG flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Olgii
Distance
5499 mi

Book with confidence

Seattle to Olgii Flights

The cheapest times to fly from Seattle to Olgii

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

 

The best time to book a flight from Seattle to Olgii

Sunday is one of the best days to book for cheap flights from Seattle to Olgii: 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 Seattle to Olgii

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 Seattle to Olgii in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Seattle to Olgii 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 Seattle to Olgii 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.

 

Seattle to Olgii Flights
*Available to One Key members.