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$382+ Cheap flights from Seattle (SEA) to Belgrade (BEG)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BEG
Aug 22 — Aug 291
Fri 8/22
Fri 8/29
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Belgrade Nikola Tesla are usually found in February or November, booked 41 days in advance, depart on a Monday or Wednesday and return on a Monday

Cheap flight deals from Seattle to Belgrade

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Belgrade (BEG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 17, 2025.

Round-trip from

$807
(Expedia)

One-way from

$382
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$935
From Seattle/Tacoma Intl to Belgrade Nikola Tesla
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One-way flight from Seattle/Tacoma Intl to Belgrade Nikola Tesla
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Highest demand for flights based on searches. 23% potential increase in price ($290 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Seattle to Belgrade

Cheapest flights from Seattle to Belgrade
Explore the most affordable flight options available from Seattle to Belgrade. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2025.

This Expedia deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/85:40 pmSEA - BEG
1 stop19h 40mMultiple Airlines
Sat 11/157:05 amBEG - SEA
1 stop17h 35mMultiple Airlines
Deal found 8/17$807
This Expedia deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2611:30 amSEA - BEG
2 stops25h 45mMultiple Airlines
Fri 9/57:00 amBEG - SEA
2 stops20h 45mMultiple Airlines
Deal found 8/16$810
This FlightHub deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/265:25 pmSEA - BEG
1 stop19h 50mMultiple Airlines
Sat 9/66:10 amBEG - SEA
1 stop18h 05mMultiple Airlines
Deal found 8/16$855
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/811:59 pmSEA - BEG
2 stops27h 51mUnited Airlines
Sat 11/151:50 pmBEG - SEA
3 stops42h 25mUnited Airlines
Deal found 8/17$1,005
This Mytrip deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/195:25 pmSEA - BEG
2 stops19h 45mMultiple Airlines
Thu 8/216:30 pmBEG - SEA
2 stops29h 35mMultiple Airlines
Deal found 8/16$1,039

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Belgrade 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, Cheapflights users made 2,558,603 searches. Data last updated August 17, 2025.
Use the filters below to find and compare flights from Seattle to Belgrade that are best for you.

Fly from

Seattle

Fly to

Belgrade

Route

Depart

Return

Price

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Sat 11/8

5:40 pm-10:20 pm

1 stop19h 40m

Belgrade Nikola Tesla

Sat 11/15

7:05 am-3:40 pm

1 stop17h 35m

$807

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Sat 11/8

11:59 pm-12:50 pm

2 stops27h 51m

Belgrade Nikola Tesla

Sat 11/15

1:50 pm-11:15 pm

3 stops42h 25m

$1,005

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Wed 12/24

5:40 pm-11:50 am

1 stop33h 10m

Belgrade Nikola Tesla

Thu 1/1

7:05 am-3:40 pm

1 stop17h 35m

$1,068

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Sat 11/8

7:00 pm-7:25 pm

1 stop15h 25m

Belgrade Nikola Tesla

Fri 11/14

12:45 am-5:05 pm

1 stop25h 20m

$1,288

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Wed 12/24

5:50 am-10:30 am

3 stops43h 40m

Belgrade Nikola Tesla

Thu 1/1

6:50 am-9:31 am

3 stops35h 41m

$1,318

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Thu 9/18

8:31 pm-10:10 am

3 stops52h 39m

$382

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Fri 9/19

8:31 pm-10:10 am

3 stops52h 39m

$383

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Thu 9/18

12:30 pm-8:30 am

1 stop35h 00m

$629

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Fri 9/19

7:10 pm-8:30 am

1 stop28h 20m

$641

SeattleBelgrade

SEA - BEG

SEABEG

Seattle/Tacoma Intl

Mon 9/1

1:39 pm-10:15 pm

3 stops47h 36m

$1,743

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 11 results
1
2

Best time to book a flight from Seattle to Belgrade

Have a flexible travel schedule? Discover the best time to fly to Belgrade from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Belgrade

How far ahead should I book a flight from Seattle to Belgrade?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Belgrade. Price data was last updated on August 8, 2025.

The price you pay for your flight from Seattle to Belgrade may vary depending on when you book. For the best chance of a lower fare, look to book 40 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Belgrade?

Currently, January is the cheapest month in which you can book a flight from Seattle to Belgrade (average of $688). Flying from Seattle to Belgrade in June is currently the most expensive (average of $1,174). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to BEG?

Find hourly flight availability from Seattle to Belgrade. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 17, 2025.

It’s typically best to fly out from Seattle to Belgrade in the evening. Doing so could potentially save you 19% on the flight price compared to flying in the afternoon, which is usually more expensive.

What’s the top layover airport for flights from Seattle to Belgrade?

Share of 1-stop round-trip flights from Seattle to Belgrade chosen by Cheapflights users in the past 12 months, using the same layover each way.

Frankfurt am Main (FRA) – chosen by Cheapflights users on 67% of 1-stop itineraries from Seattle to Belgrade on Cheapflights.

What’s the cheapest layover airport for flights from Seattle to Belgrade?

Average round-trip fare for 1-stop flights from Seattle to Belgrade, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Frankfurt am Main (FRA) is the most affordable 1-stop option, with an average round-trip price of $918.

What’s the fastest layover option from Seattle to Belgrade?

Shortest average travel time for 1-stop one-way flights from Seattle to Belgrade, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Frankfurt am Main (FRA) have the shortest average one-way travel time for 1-stop routes: 13h 50m.

Which airport typically offers the quickest layover for flights from Seattle to Belgrade?

Average layover duration for 1-stop one-way flights from Seattle to Belgrade, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Istanbul (IST) offer the fastest connection on this route, with an average layover time of 2h 13m.

Reviews of airlines servicing Belgrade

Get insights into the airlines that provide service to Belgrade. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belgrade. Reviews last updated August 17, 2025.
See what other customers who have flown with KLM, Turkish Airlines, and Lufthansa from Seattle to Belgrade have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,385 reviews

Crew

8.4

Comfort

7.7

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,385 reviews
KLM
7.8
Good
1,385 reviews

Crew

8.4

Comfort

7.7

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Turkish Airlines
7.3
Good
3,943 reviews
KLM
7.8
Good
1,385 reviews

Crew

8.4

Comfort

7.7

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Lufthansa
6.8
Okay
7,325 reviews
KLM
7.8
Good
1,385 reviews

Crew

8.4

Comfort

7.7

Entertainment

7.1

Overall

7.8

Boarding

7.8

Food

7.3

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Belgrade. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Seattle to Belgrade round-trip?

    According to our current data, Lufthansa ($646), KLM ($688), and Turkish Airlines ($747) offers the cheapest pricing from Seattle to Belgrade. These flights start at 32% lower than the current average price 3 months from now.

  • Can I find deals for flights from Seattle to Belgrade that include hotel bookings?

    Yes. In addition to deals on Seattle to Belgrade flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Belgrade?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Belgrade.

  • Can I find deals for business class flights from Seattle to Belgrade?

    Yes. Cheapflights offers flight deals from Seattle to Belgrade by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Belgrade?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Belgrade (average of $688). Flying from Seattle to Belgrade in June is currently the most expensive (average of $1,174). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Belgrade

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Belgrade flights

Top 3 airlines flying from Seattle to Belgrade

Discover the top 3 airlines that operate flights from Seattle to Belgrade. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$646Average$957FlexibilityNo cancel feeOn-time76%
KLMCheapest$688Average$851FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$747Average$1,059FlexibilityNo cancel feeOn-time77%

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