How does KAYAK find such low prices on flights from Pennsylvania to Trieste?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Pennsylvania to Trieste.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Pennsylvania to Trieste?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Trieste from Pennsylvania is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Pennsylvania to Trieste?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Trieste with an airline and back to Pennsylvania with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Pennsylvania to Trieste?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Trieste from Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$813 CHEAP FLIGHTS from Pennsylvania to Trieste

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Flight Deals

Cheap Flights from Pennsylvania to Trieste

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Pennsylvania to Trieste

Tue, Nov 17 - Tue, Nov 24

1:20 pm - 10:25 amPHL Philadelphia-TRS Trieste Ronchi dei Legionari

15h 05m2 stops Chicago O'Hare Intl Rome Fiumicino

6:35 am - 5:47 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

17h 12m2 stops Rome Fiumicino Chicago O'Hare Intl

$1,149United Airlines

Tue, Jan 5 - Sat, Jan 16

5:40 pm - 6:30 pmPHL Philadelphia-TRS Trieste Ronchi dei Legionari

42h 50m2 stops Frankfurt am Main Rome Fiumicino

11:15 am - 4:05 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

34h 50m2 stops Rome Fiumicino Frankfurt am Main

$1,226Lufthansa

Sun, Jan 3 - Sat, Jan 16

5:40 pm - 6:30 pmPHL Philadelphia-TRS Trieste Ronchi dei Legionari

42h 50m2 stops Frankfurt am Main Rome Fiumicino

3:15 pm - 4:05 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

30h 50m2 stops Rome Fiumicino Frankfurt am Main

$1,227Lufthansa

Tue, Jan 5 - Tue, Jan 19

5:05 pm - 10:25 amPHL Philadelphia-TRS Trieste Ronchi dei Legionari

35h 20m2 stops Toronto Pearson Intl Rome Fiumicino

6:35 am - 10:56 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

22h 21m2 stops Rome Fiumicino Toronto Pearson Intl

$1,442United Airlines

Tue, Dec 8 - Fri, Dec 11

9:45 am - 10:25 amPHL Philadelphia-TRS Trieste Ronchi dei Legionari

18h 40m2 stops Chicago O'Hare Intl Rome Fiumicino

6:35 am - 2:44 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

38h 09m2 stops Rome Fiumicino Montreal Pierre Elliott Trudeau Intl

$1,443United Airlines

Tue, Dec 8 - Fri, Dec 11

9:45 am - 10:25 amPHL Philadelphia-TRS Trieste Ronchi dei Legionari

18h 40m2 stops Chicago O'Hare Intl Rome Fiumicino

6:35 am - 2:44 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

38h 09m2 stops Rome Fiumicino Montreal Pierre Elliott Trudeau Intl

$1,444United Airlines

Sat, Jan 2 - Fri, Jan 22

9:15 am - 10:25 amPHL Philadelphia-TRS Trieste Ronchi dei Legionari

43h 10m2 stops Toronto Pearson Intl Rome Fiumicino

6:35 am - 2:44 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

38h 09m2 stops Rome Fiumicino Montreal Pierre Elliott Trudeau Intl

$1,486United Airlines

Sat, Jan 2 - Tue, Jan 19

9:15 am - 10:25 amPHL Philadelphia-TRS Trieste Ronchi dei Legionari

43h 10m2 stops Toronto Pearson Intl Rome Fiumicino

6:35 am - 4:21 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

39h 46m2 stops Rome Fiumicino Toronto Pearson Intl

$1,491United Airlines

Thu, Jan 7 - Wed, Jan 20

9:15 am - 10:25 amPHL Philadelphia-TRS Trieste Ronchi dei Legionari

43h 10m2 stops Toronto Pearson Intl Rome Fiumicino

6:35 am - 2:44 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

38h 09m2 stops Rome Fiumicino Montreal Pierre Elliott Trudeau Intl

$1,512United Airlines

Thu, Jan 7 - Tue, Jan 19

9:15 am - 10:25 amPHL Philadelphia-TRS Trieste Ronchi dei Legionari

43h 10m2 stops Toronto Pearson Intl Rome Fiumicino

6:35 am - 10:56 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

22h 21m2 stops Rome Fiumicino Toronto Pearson Intl

$1,517United Airlines

Useful Info

Cheapest flight	$813

Flight from Philadelphia to Trieste

How does KAYAK find such low prices on flights from Pennsylvania to Trieste?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Pennsylvania to Trieste.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Pennsylvania to Trieste?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Trieste from Pennsylvania is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Pennsylvania to Trieste?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Trieste with an airline and back to Pennsylvania with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Pennsylvania to Trieste?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Trieste from Pennsylvania up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.