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.

$1,226 CHEAP FLIGHTS from Pennsylvania to Trieste

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Cheap Flights from Pennsylvania to Trieste

Cheap flights from Pennsylvania to Trieste with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Round-trip

Last minute

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

Wed, Oct 21 - Sat, Oct 31

12:35 pm - 4:00 pmPHL Philadelphia-TRS Trieste Ronchi dei Legionari

21h 25m3 stops Atlanta Hartsfield-Jackson Chicago O'Hare Intl Dublin

3:10 pm - 12:54 amTRS Trieste Ronchi dei Legionari-PHL Philadelphia

38h 44m3 stops Barcelona-El Prat Lisbon Humberto Delgado Miami

$1,281Multiple Airlines

Wed, Oct 21 - Sat, Oct 31

4:20 pm - 2:00 pmPHL Philadelphia-TRS Trieste Ronchi dei Legionari

15h 40m2 stops Toronto Pearson Intl Frankfurt am Main

3:10 pm - 12:54 amTRS Trieste Ronchi dei Legionari-PHL Philadelphia

38h 44m3 stops Barcelona-El Prat Lisbon Humberto Delgado Miami

$1,300Multiple Airlines

Wed, Oct 21 - Sat, Oct 31

10:22 am - 10:25 amPHL Philadelphia-TRS Trieste Ronchi dei Legionari

18h 03m2 stops Boston Logan Intl Rome Fiumicino

6:35 am - 10:43 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

21h 08m2 stops Rome Fiumicino Miami

$1,326Multiple Airlines

Wed, Oct 21 - Sat, Oct 31

5:40 pm - 2:00 pmPHL Philadelphia-TRS Trieste Ronchi dei Legionari

14h 20m1 stop Frankfurt am Main

11:15 am - 5:05 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

34h 50m2 stops Rome Fiumicino Frankfurt am Main

$1,417Multiple Airlines

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

Thu, Oct 15 - Mon, Nov 2

5:40 pm - 1:55 pmPHL Philadelphia-TRS Trieste Ronchi dei Legionari

14h 15m1 stop Frankfurt am Main

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

34h 50m2 stops Rome Fiumicino Frankfurt am Main

$2,661Lufthansa

Thu, Oct 15 - Mon, Nov 2

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

18h 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

$2,678Lufthansa

Thu, Oct 15 - Sun, Nov 1

5:40 pm - 1:55 pmPHL Philadelphia-TRS Trieste Ronchi dei Legionari

14h 15m1 stop Frankfurt am Main

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

54h 50m2 stops Rome Fiumicino Frankfurt am Main

$2,693Lufthansa

Thu, Oct 15 - Sun, Nov 1

5:40 pm - 2:30 pmPHL Philadelphia-TRS Trieste Ronchi dei Legionari

38h 50m2 stops Frankfurt am Main Rome Fiumicino

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

54h 50m2 stops Rome Fiumicino Frankfurt am Main

$2,710Lufthansa

Thu, Oct 15 - Wed, Oct 28

5:40 pm - 1:55 pmPHL Philadelphia-TRS Trieste Ronchi dei Legionari

14h 15m1 stop Frankfurt am Main

3:15 pm - 5:05 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

30h 50m2 stops Rome Fiumicino Frankfurt am Main

$2,909Lufthansa

Thu, Oct 15 - Sat, Oct 31

5:40 pm - 1:55 pmPHL Philadelphia-TRS Trieste Ronchi dei Legionari

14h 15m1 stop Frankfurt am Main

3:15 pm - 5:05 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

30h 50m2 stops Rome Fiumicino Frankfurt am Main

$3,137Lufthansa

Thu, Oct 15 - Tue, Oct 27

5:40 pm - 1:55 pmPHL Philadelphia-TRS Trieste Ronchi dei Legionari

14h 15m1 stop Frankfurt am Main

3:15 pm - 5:05 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

54h 50m2 stops Rome Fiumicino Frankfurt am Main

$3,141Lufthansa

Thu, Oct 15 - Wed, Oct 28

3:08 pm - 10:25 amPHL Philadelphia-TRS Trieste Ronchi dei Legionari

13h 17m2 stops Washington, D.C. Dulles Intl Rome Fiumicino

6:35 am - 6:51 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

17h 16m2 stops Rome Fiumicino Washington, D.C. Dulles Intl

$9,951United Airlines

Thu, Oct 15 - Thu, Oct 29

5:40 pm - 1:55 pmPHL Philadelphia-TRS Trieste Ronchi dei Legionari

14h 15m1 stop Frankfurt am Main

6:35 am - 5:05 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

15h 30m2 stops Rome Fiumicino Frankfurt am Main

$10,339Lufthansa

Thu, Oct 15 - Tue, Oct 27

5:40 pm - 1:55 pmPHL Philadelphia-TRS Trieste Ronchi dei Legionari

14h 15m1 stop Frankfurt am Main

3:15 pm - 5:05 pmTRS Trieste Ronchi dei Legionari-PHL Philadelphia

54h 50m2 stops Rome Fiumicino Frankfurt am Main

$10,371Lufthansa

Cheapest flight	$1,226

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.