Cheap International Flights from Philadelphia in September
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September Travel Tip
A strong month for Europe. Shoulder season starts and prices often ease from peak.
Best Destinations from Philadelphia in September
PHL → DUB
Dublin
Ireland
Est. $275
round trip
~8h flight time
PHL → GLA
Glasgow
United Kingdom
Est. $278
round trip
~8h flight time
PHL → EDI
Edinburgh
United Kingdom
Est. $281
round trip
~8h flight time
PHL → OPO
Porto
Portugal
Est. $286
round trip
~8h flight time
PHL → MAN
Manchester
United Kingdom
Est. $288
round trip
~8h flight time
PHL → LIS
Lisbon
Portugal
Est. $290
round trip
~8h flight time
PHL → BHX
Birmingham
United Kingdom
Est. $291
round trip
~8h flight time
PHL → LHR
London
United Kingdom
Est. $297
round trip
~8h flight time
PHL → FAO
Faro
Portugal
Est. $299
round trip
~8h flight time
Best Regions from Philadelphia in September
Related Reading
Frequently Asked Questions
What are the cheapest destinations from Philadelphia in September?
In September, some of the most affordable destinations from Philadelphia include Dublin (est. $275 RT), Glasgow (est. $278 RT), Edinburgh (est. $281 RT). Prices vary by booking window.
Is September cheap to fly from Philadelphia?
A strong month for Europe. Shoulder season starts and prices often ease from peak.
How far ahead should I book flights from Philadelphia in September?
For September departures from Philadelphia, booking 6–10 weeks in advance typically yields the best fares. For peak months like July and December, book 3–4 months early. Fare reviews and notifications are paused during the provider migration.
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