HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Pittsburgh

$105+ Cheap flights from Irvine, CA to Pittsburgh (PIT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PIT
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Irvine to Pittsburgh with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Irvine to Pittsburgh are usually found in August or April, booked 75 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Irvine to Pittsburgh

Keep the following information in mind while searching for Irvine to Pittsburgh flight deals. Data was last updated septiembre 16, 2025.

Round-trip from

$216
(Frontier)

One-way from

$105
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$315
From Irvine to Pittsburgh
Search Deals
One-way flight from Irvine to Pittsburgh
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($80 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Irvine to Pittsburgh

Cheapest flights from Irvine to Pittsburgh
Explore the most affordable flight options available from Irvine to Pittsburgh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 16, 2025.

This Frontier deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/279:31 pmLAX - PIT
1 stop14h 05mFrontier
lun. 9/292:17 pmPIT - LAX
1 stop9h 19mFrontier
Deal found 9/14$216
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/612:09 amLAX - PIT
2 stops20h 07mMultiple Airlines
mié. 10/85:17 pmPIT - LAX
1 stop21h 57mMultiple Airlines
Deal found 9/16$218
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/298:55 pmLAX - PIT
1 stop16h 25mMultiple Airlines
lun. 10/66:51 pmPIT - LAX
2 stops21h 29mMultiple Airlines
Deal found 9/15$219
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/212:15 pmLAX - PIT
2 stops30h 01mMultiple Airlines
mar. 10/285:17 pmPIT - LAX
1 stop29h 36mMultiple Airlines
Deal found 9/16$220
This Frontier deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/259:31 pmLAX - PIT
1 stop13h 01mFrontier
dom. 9/283:31 pmPIT - LAX
1 stop8h 05mFrontier
Deal found 9/14$221
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/2112:09 amLAX - PIT
2 stops20h 07mMultiple Airlines
mié. 10/295:17 pmPIT - LAX
1 stop22h 50mMultiple Airlines
Deal found 9/14$222
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/82:27 pmLAX - PIT
1 stop15h 52mMultiple Airlines
sáb. 10/115:05 pmPIT - LAX
1 stop18h 23mMultiple Airlines
Deal found 9/13$223
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/143:48 pmLAX - PIT
1 stop21h 21mMultiple Airlines
mar. 10/215:05 pmPIT - LAX
1 stop18h 23mMultiple Airlines
Deal found 9/14$224
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/298:55 pmLAX - PIT
1 stop16h 25mMultiple Airlines
lun. 10/206:51 pmPIT - LAX
2 stops16h 37mMultiple Airlines
Deal found 9/15$225
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/285:35 amLAX - PIT
1 stop11h 21mMultiple Airlines
sáb. 10/46:04 pmPIT - LAX
1 stop17h 08mMultiple Airlines
Deal found 9/14$227
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/46:15 amLAX - PIT
1 stop7h 05mMultiple Airlines
sáb. 10/115:05 pmPIT - LAX
1 stop18h 23mMultiple Airlines
Deal found 9/15$228

Cheapflights Fare Finder

 
Customize your flight search to find flights from Irvine to Pittsburgh that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 16, 2025.
Use the filters below to find and compare flights from Irvine to Pittsburgh that are best for you.

Fly from

Irvine

Fly to

Pittsburgh

Route

Depart

Return

Price

Los AngelesPittsburgh

LAX - PIT

LAXPIT

Los Angeles

jue. 11/6

12:59 pm-8:48 pm

Nonstop4h 49m

Pittsburgh

jue. 11/13

9:31 am-12:14 pm

Nonstop5h 43m

$238

Los AngelesPittsburgh

LAX - PIT

LAXPIT

Los Angeles

mar. 10/28

12:59 pm-8:48 pm

Nonstop4h 49m

Pittsburgh

jue. 10/30

9:31 am-12:14 pm

Nonstop5h 43m

$238

Los AngelesPittsburgh

LAX - PIT

LAXPIT

Los Angeles

dom. 10/5

12:59 pm-8:48 pm

Nonstop4h 49m

Pittsburgh

mar. 10/7

5:17 pm-9:25 pm

1 stop7h 08m

$242

Los AngelesPittsburgh

LAX - PIT

LAXPIT

Los Angeles

mar. 10/7

12:45 am-11:02 am

1 stop7h 17m

Pittsburgh

mar. 10/14

5:10 pm-9:54 pm

1 stop7h 44m

$257

Los AngelesPittsburgh

LAX - PIT

LAXPIT

Los Angeles

dom. 12/14

12:59 pm-8:48 pm

Nonstop4h 49m

Pittsburgh

mar. 12/16

9:31 am-12:14 pm

Nonstop5h 43m

$268

Los AngelesPittsburgh

LAX - PIT

LAXPIT

Los Angeles

jue. 9/25

12:59 pm-8:48 pm

Nonstop4h 49m

Pittsburgh

dom. 9/28

9:31 am-12:14 pm

Nonstop5h 43m

$268

Los AngelesPittsburgh

LAX - PIT

LAXPIT

Los Angeles

sáb. 12/13

5:00 am-4:25 pm

1 stop8h 25m

Pittsburgh

mar. 12/16

5:35 pm-10:30 pm

1 stop7h 55m

$272

Los AngelesPittsburgh

LAX - PIT

LAXPIT

Los Angeles

mar. 10/14

9:45 pm-10:34 am

1 stop9h 49m

Pittsburgh

mar. 10/21

6:36 pm-12:31 am

1 stop8h 55m

$277

Los AngelesPittsburgh

LAX - PIT

LAXPIT

Los Angeles

mar. 10/21

11:55 pm-10:22 am

1 stop7h 27m

Pittsburgh

sáb. 11/1

4:59 pm-9:49 pm

1 stop7h 50m

$277

Los AngelesPittsburgh

LAX - PIT

LAXPIT

Los Angeles

mar. 11/25

5:25 am-4:12 pm

1 stop7h 47m

Pittsburgh

mar. 12/2

5:26 pm-11:21 pm

1 stop8h 55m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Irvine to Pittsburgh

Have a flexible travel schedule? Discover the best time to fly to Pittsburgh from Irvine with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Irvine to Pittsburgh

How far ahead should I book a flight from Irvine to Pittsburgh?

Use this chart to determine the optimal time to book a round-trip flight from Irvine to Pittsburgh. Price data was last updated on September 12, 2025.

The price you pay for your flight from Irvine to Pittsburgh may vary depending on when you book. For the best chance of a lower fare, look to book 75 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Irvine to Pittsburgh?

Currently, August is the cheapest month in which you can book a flight from Irvine to Pittsburgh (average of $262). Flying from Irvine to Pittsburgh in November is currently the most expensive (average of $333). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IR9 to PIT?

Find hourly flight availability from Irvine to Pittsburgh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Irvine to Pittsburgh as you normally would.

What is the cheapest day to fly from Irvine to Pittsburgh?

Use this chart to determine the cheapest time to fly round-trip from Irvine to Pittsburgh. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Irvine to Pittsburgh flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Irvine to Pittsburgh

Explore weekly flight availability from Irvine to Pittsburgh. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated septiembre 16, 2025.

The most flights from IR9 to PIT are scheduled on a Monday (4 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing Pittsburgh

Get insights into the airlines that provide service to Pittsburgh. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Pittsburgh. Reviews last updated septiembre 16, 2025.
See what other customers who have flown with Southwest, Breeze Airways, and Delta from Irvine to Pittsburgh have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Breeze Airways
8.0
Very good
205 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,957 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,019 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Irvine to Pittsburgh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Pittsburgh from Irvine?

    Pittsburgh (PIT), located 13.5 mi from the city center, is the airport you fly into when you book flights from Irvine to Pittsburgh. 8 airlines have flights to Pittsburgh from Irvine on a regular basis. Booking flights from Irvine to Pittsburgh should not be difficult; the airport handles an average of 2 inbound flights from Irvine per day.

  • How popular is this Irvine to Pittsburgh flight route?

    This flight path from Irvine to Pittsburgh was viewed by 6 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Irvine to Pittsburgh?

    For as low as $238, Breeze Airways can have you in Pittsburgh from Irvine in 4h 49m. Airlines will cover a distance of 2129 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from Irvine to Pittsburgh?

    Consider Qantas Airways (93%), American Airlines (90%) or Malaysia Airlines (89%) when booking your flight. These represent the most reliable airlines when flying from Irvine to Pittsburgh.

  • What are the cheapest flights from Irvine to Pittsburgh?

    On average you can expect to pay $682 for a flight from Irvine to Pittsburgh. The cheapest flight overall is $99 while the most popular route, (Los Angeles - Pittsburgh) is currently priced at $189.

  • Can I find deals for flights from Irvine to Pittsburgh that include hotel bookings?

    Yes. In addition to deals on Irvine to Pittsburgh flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Irvine to Pittsburgh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Irvine to Pittsburgh.

  • Can I find deals for business class flights from Irvine to Pittsburgh?

    Yes. Cheapflights offers flight deals from Irvine to Pittsburgh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Irvine to Pittsburgh?

    Currently, August is the cheapest month in which you can book a flight from Irvine to Pittsburgh (average of $262). Flying from Irvine to Pittsburgh in November is currently the most expensive (average of $333). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Pittsburgh?

Book flights to Pittsburgh if you plan to visit one of these locations
Mars
Steubenville
Monroeville
Washington
Wexford
Belle Vernon

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Irvine to Pittsburgh

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
San Francisco to John F Kennedy Intl flights
Los Angeles to Newark flights
Los Angeles to LaGuardia flights
San Francisco to Newark flights
Ontario to John F Kennedy Intl flights
San Francisco to LaGuardia flights
Burbank to Newark flights
Los Angeles to Reagan-National flights
Ontario to Newark flights
San Diego to John F Kennedy Intl flights
Los Angeles to Dulles Intl flights
Santa Ana to Newark flights
Santa Ana to LaGuardia flights
Burbank to LaGuardia flights
San Francisco to Reagan-National flights
San Diego to Newark flights
San Francisco to Dulles Intl flights
Santa Ana to John F Kennedy Intl flights
San Francisco to Philadelphia flights
Ontario to LaGuardia flights
Las Vegas to John F Kennedy Intl flights
Los Angeles to Philadelphia flights
San Diego to LaGuardia flights
San Jose to Newark flights
San Diego to Dulles Intl flights
San Jose to John F Kennedy Intl flights
Las Vegas to Newark flights
Sacramento to Newark flights
Sacramento to John F Kennedy Intl flights
San Diego to Reagan-National flights
Oakland to Newark flights
Ontario to Dulles Intl flights
Oakland to John F Kennedy Intl flights
San Jose to LaGuardia flights
Ontario to Reagan-National flights
Ontario to Philadelphia flights
Las Vegas to LaGuardia flights
Sacramento to LaGuardia flights
Sacramento to Dulles Intl flights
San Jose to Dulles Intl flights
Burbank to John F Kennedy Intl flights
Los Angeles to Pittsburgh flights
Santa Ana to Reagan-National flights
Santa Ana to Dulles Intl flights
Oakland to LaGuardia flights
San Jose to Reagan-National flights
San Diego to Philadelphia flights
Santa Ana to Philadelphia flights
San Francisco to Pittsburgh flights

Top 8 airlines flying from Irvine to Pittsburgh

Discover the top 8 airlines that operate flights from Irvine to Pittsburgh. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$90Average$260FlexibilityNo cancel feeOn-time65%
FrontierCheapest$101Average$220FlexibilityNo cancel feeOn-time62%
Breeze AirwaysCheapest$115Average$258FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$173Average$387FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$214Average$459FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$228Average$448FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$253Average$431FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$263Average$367FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.