Cheap Flights from Portsmouth to Belgrade

View €279 flight on Wed, 3 Sep 2025Opens in a new window

Popular airlines from Portsmouth to Belgrade

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Cheap flights from Portsmouth to Belgrade (BOS-BEG)

Prices were available within the past 7 days and start at €279 for one-way flights and €361 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Mon, 11 Aug - Wed, 27 Aug
BOS
Boston
BEG
Belgrade
€361 Return, found 5 days ago
€361
Return
found 5 days ago
Select Swiss International Air Lines flight, departing Mon, 11 Aug from Boston to Belgrade, returning Wed, 27 Aug, priced at €361 found 5 days ago
Lufthansa
Mon, 11 Aug - Wed, 27 Aug
BOS
Boston
BEG
Belgrade
€376 Return, found 5 days ago
€376
Return
found 5 days ago
Select Lufthansa flight, departing Mon, 11 Aug from Boston to Belgrade, returning Wed, 27 Aug, priced at €376 found 5 days ago
Delta
Mon, 18 Aug - Wed, 3 Sep
BOS
Boston
BEG
Belgrade
€381 Return, found 3 days ago
€381
Return
found 3 days ago
Select Delta flight, departing Mon, 18 Aug from Boston to Belgrade, returning Wed, 3 Sep, priced at €381 found 3 days ago
Air Canada
Mon, 18 Aug - Wed, 3 Sep
BOS
Boston
BEG
Belgrade
€404 Return, found 3 days ago
€404
Return
found 3 days ago
Select Air Canada flight, departing Mon, 18 Aug from Boston to Belgrade, returning Wed, 3 Sep, priced at €404 found 3 days ago
KLM
Mon, 18 Aug - Wed, 3 Sep
BOS
Boston
BEG
Belgrade
€425 Return, found 3 days ago
€425
Return
found 3 days ago
Select KLM flight, departing Mon, 18 Aug from Boston to Belgrade, returning Wed, 3 Sep, priced at €425 found 3 days ago
Air France
Mon, 18 Aug - Wed, 3 Sep
BOS
Boston
BEG
Belgrade
€434 Return, found 3 days ago
€434
Return
found 3 days ago
Select Air France flight, departing Mon, 18 Aug from Boston to Belgrade, returning Wed, 3 Sep, priced at €434 found 3 days ago

Find the cheapest month to fly from Boston (BOS) to Belgrade (BEG)

October is typically the cheapest month to fly

From €361 - €862 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.