Cheap flights from Seattle to Belgrade from $324 BFI, SEA → BEG
Boeing Field International Airport (BFI), Seattle-Tacoma International Airport (SEA) → Belgrad Nikola Tesla Airport (BEG)
The cheapest return found recently is $1,295 with WestJet, 2 Jan 2027 – 6 Jan 2027, found today. The cheapest one-way found recently is $324 with Icelandair, 29 Nov, found 4 days ago.
- Cheapest one-way found recently
- $324, found 4 days ago
- Cheapest return found recently
- $1,295, 2 Jan 2027 to 6 Jan 2027
- Usual return price
- $801 to $1,341
- Cheapest month to fly
- April 2027, return fares from $667 found in the last 7 days
Return
The cheapest return fare on each of 4 departure dates is usually $801 to $1,341.
Cheapest return found recently
$1,295
2 Jan 2027 – 6 Jan 2027 · WestJet
Seattle-Tacoma International Airport (SEA) → Belgrad Nikola Tesla Airport (BEG)
Leaves 2:20 p.m. · Return leaves 9:15 p.m. · 74 h 39 min of travel, both ways together
out 2 stops, back 3 stops
found today
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$1,295 2 Jan 2027 – 6 Jan 2027found todaySee prices for these dates
$667 15 Apr 2027 – 18 Apr 2027found 4 days agoSee prices for these dates
What have prices looked like?
Over 35 days, 24 Sept to 12 Nov, the cheapest return we saw each day was $666 to $1,023.
At $1,295, the cheapest return found recently is above that range.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 4 departure dates from 18 Dec to 15 Apr 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 4-night return fares leaving within 3 days of 2 Jan 2027 to compare.
Every date we hold
5 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 18 Dec – 20 Dec | $1,479 | United Airlines | Seattle-Tacoma International Airport (SEA) → Belgrad Nikola Tesla Airport (BEG) | out 2 stops, back 1 stop | found today | See prices for these dates |
| 2 Jan 2027 – 6 Jan 2027 | $1,295 | WestJet | Seattle-Tacoma International Airport (SEA) → Belgrad Nikola Tesla Airport (BEG) | out 2 stops, back 3 stops | found today | See prices for these dates |
| 14 Apr 2027 – 18 Apr 2027 | $845 | Discover Airlines | Seattle-Tacoma International Airport (SEA) → Belgrad Nikola Tesla Airport (BEG) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 15 Apr 2027 – 18 Apr 2027 | $667 | United Airlines | Seattle-Tacoma International Airport (SEA) → Belgrad Nikola Tesla Airport (BEG) | out 2 stops, back 1 stop | found 4 days ago | See prices for these dates |
Which month looks cheapest?
April 2027 is the cheapest month — from $667.
Airlines on the cheapest dates: United Airlines, WestJet, Discover Airlines.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$324
29 Nov · Icelandair
Seattle-Tacoma International Airport (SEA) → Belgrad Nikola Tesla Airport (BEG)
Leaves 2:35 p.m. · 20 h 15 min trip
2 stops
found 4 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$324 29 Novfound 4 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 30 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $324 to $1,343.
At $324, the cheapest one-way found recently is at the low end of that range.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 2 departure dates and need at least 3 to say what is usual.
Could nearby dates be cheaper?
No. We hold one-way fares on 1 other departure date within 3 days of 29 Nov, and it is not cheaper.
Every date we hold
2 fares on 2 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 29 Nov | $324 | Icelandair | Seattle-Tacoma International Airport (SEA) → Belgrad Nikola Tesla Airport (BEG) | 2 stops | found 4 days ago | Open this trip |
| 30 Nov | $580 | SeaPort Airlines | Boeing Field International Airport (BFI) → Belgrad Nikola Tesla Airport (BEG) | 3 stops | found 4 days ago | Open this trip |
Airlines on the cheapest dates: Icelandair, SeaPort Airlines.
Premium cabin fares from Seattle to Belgrade
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 2 Jan 2027 – 6 Jan 2027 in another cabin: Premium economy · Business · First
Today's prices for 29 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Seattle to Belgrade?
Return
Fares 90 to 179 days before departure were typically 49% lower than 30 to 59 days before departure.
From the cheapest return each day between 24 Sept and 12 Nov (35 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 30–59 days | $1,462 | $913 | +97% | 17 |
| 60–89 days | $817 | $808 | +10% | 9 |
| 90–179 days | $742 | $666 | Cheapest seen | 18 |
One-way
Not enough history yet: in 30 days of one-way prices, 24 Sept to 11 Nov, fewer than 3 booking ranges had prices on 7 days or more.
Live price for these dates
The cheapest return found recently is for 2 Jan 2027 – 6 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Seattle to Belgrade?
The cheapest return found recently is $1,295 with WestJet, 2 Jan 2027 to 6 Jan 2027, found today. The cheapest return we hold, of any age, is $667 with United Airlines, 15 Apr 2027 to 18 Apr 2027, found 4 days ago. The cheapest return fare on each of 4 departure dates is usually $801 to $1,341.
How much is a one-way flight from Seattle to Belgrade?
The cheapest one-way found recently is $324 with Icelandair, 29 Nov, found 4 days ago.
What is the cheapest month to fly from Seattle to Belgrade?
April 2027 is the cheapest month for a return, from $667, 15 Apr 2027 to 18 Apr 2027, found 4 days ago.
How far ahead should I book a flight from Seattle to Belgrade?
In 35 days of prices between 24 Sept and 12 Nov, return fares 90 to 179 days before departure were typically 49% lower than 30 to 59 days before departure.
How long is the flight from Seattle to Belgrade?
The cheapest one-way found recently, with Icelandair on 29 Nov, takes 20 h 15 min with 2 stops.
Which airlines have the cheapest flights from Seattle to Belgrade?
Between 18 Dec and 15 Apr 2027, United Airlines has the cheapest return on 2 of the 4 departure dates we hold, WestJet on 1 and Discover Airlines on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work