$330+ Cheap flights from Ontario to Lancaster, PA (ONT - LNS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LNS
Oct 16 — Oct 231
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Lancaster 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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Lancaster
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Best
Last-minute
One-way
Cheapest flights from Ontario to LancasterExplore the most affordable flight options available from Ontario to Lancaster. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2026.
Explore the most affordable flight options available from Ontario to Lancaster. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2026.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:03 am -
2 stops13h 28m
Sat 10/39:06 am -
2 stops11h 40m
Deal found 9/14![United Airlines logo]()
$589
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2411:52 pm -
1 stop17h 04m
Mon 1/42:36 pm -
1 stop11h 02m
Deal found 9/13![United Airlines logo]()
$610
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2411:52 pm -
1 stop17h 04m
Fri 1/89:05 am -
2 stops14h 21m
Deal found 9/13![United Airlines logo]()
$620
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:27 pm -
2 stops22h 29m
Thu 1/79:05 am -
2 stops14h 21m
Deal found 9/13![United Airlines logo]()
$625
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:00 am -
2 stops16h 31m
Mon 10/193:11 pm -
1 stop10h 38m
Deal found 9/11![United Airlines logo]()
$639
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2011:52 pm -
1 stop11h 09m
Mon 1/42:36 pm -
1 stop11h 02m
Deal found 9/13![United Airlines logo]()
$660
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2011:52 pm -
1 stop11h 09m
Fri 1/89:05 am -
2 stops14h 21m
Deal found 9/13![United Airlines logo]()
$670
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:00 am -
2 stops15h 31m
Mon 10/193:11 pm -
1 stop10h 38m
Deal found 9/11![United Airlines logo]()
$675
Best flights from Ontario to LancasterDiscover carefully curated flight deals from Ontario to Lancaster that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
Discover carefully curated flight deals from Ontario to Lancaster that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:03 am -
2 stops13h 28m
Sat 10/39:06 am -
2 stops11h 40m
Deal found 9/14![United Airlines logo]()
$589
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:00 am -
2 stops16h 31m
Mon 10/193:11 pm -
1 stop10h 38m
Deal found 9/11![United Airlines logo]()
$639
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2011:52 pm -
1 stop11h 09m
Mon 1/42:36 pm -
1 stop11h 02m
Deal found 9/13![United Airlines logo]()
$660
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2011:52 pm -
1 stop11h 09m
Fri 1/89:05 am -
2 stops14h 21m
Deal found 9/13![United Airlines logo]()
$670
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2011:52 pm -
1 stop11h 09m
Sun 1/32:36 pm -
1 stop11h 02m
Deal found 9/13![United Airlines logo]()
$750
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:00 am -
1 stop14h 31m
Mon 10/193:11 pm -
1 stop10h 38m
Deal found 9/14![United Airlines logo]()
$750
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:00 am -
1 stop14h 31m
Sun 10/183:06 pm -
1 stop10h 43m
Deal found 9/15![United Airlines logo]()
$931
Last-minute flights from Ontario to LancasterDiscover last-minute flight deals from Ontario to Lancaster. Data last updated September 16, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Lancaster. Data last updated September 16, 2026 and is based on user searches.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:03 am -
2 stops13h 28m
Sat 10/39:06 am -
2 stops11h 40m
Deal found 9/14![United Airlines logo]()
$589
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:00 am -
2 stops16h 31m
Mon 10/193:11 pm -
1 stop10h 38m
Deal found 9/11![United Airlines logo]()
$639
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:00 am -
2 stops15h 31m
Mon 10/193:11 pm -
1 stop10h 38m
Deal found 9/11![United Airlines logo]()
$675
One-way flights from Ontario to LancasterSearch for one-way flight options from Ontario to Lancaster. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
Search for one-way flight options from Ontario to Lancaster. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:03 pm -
2 stops19h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![United Airlines logo]()
$330
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/191:52 pm -
2 stops31h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![United Airlines logo]()
$332
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:00 am -
1 stop14h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![United Airlines logo]()
$333
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:59 am -
1 stop14h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![United Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:32 pm -
2 stops31h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![United Airlines logo]()
$372
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:00 am -
1 stop14h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![United Airlines logo]()
$402
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:00 am -
1 stop14h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![United Airlines logo]()
$412
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:00 am -
1 stop14h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![United Airlines logo]()
$439
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:00 am -
1 stop14h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![United Airlines logo]()
$442
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:00 am -
1 stop14h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![United Airlines logo]()
$449
Find flight deals from Ontario to Lancaster
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Lancaster (LNS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $589 (United Airlines) |
One-way from | $330 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Lancaster 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 7,457,451 searches. Data last updated September 16, 2026.
Use the filters below to find and compare flights from Ontario to Lancaster that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioLancaster
ONT Ontario - LNS Lancaster
ONTLNS
Ontario
Mon 10/19
1:52 pm-12:31 am
2 stops31h 39m
Lancaster
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$332
OntarioLancaster
ONT Ontario - LNS Lancaster
ONTLNS
Ontario
Sat 10/31
6:59 am-12:26 am
1 stop14h 27m
Lancaster
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$362
OntarioLancaster
ONT Ontario - LNS Lancaster
ONTLNS
Ontario
Wed 10/21
7:00 am-12:31 am
1 stop14h 31m
Lancaster
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$439
Quickest round-trip
OntarioLancaster
ONT Ontario - LNS Lancaster
ONTLNS
Ontario
Thu 12/17
11:52 pm-2:01 pm
1 stop11h 09m
Lancaster
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$442
OntarioLancaster
ONT Ontario - LNS Lancaster
ONTLNS
Ontario
Fri 10/30
6:59 am-12:26 am
1 stop14h 27m
Lancaster
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$452
OntarioLancaster
ONT Ontario - LNS Lancaster
ONTLNS
Ontario
Tue 9/22
6:00 am-12:36 am
2 stops15h 36m
Lancaster
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$452
OntarioLancaster
ONT Ontario - LNS Lancaster
ONTLNS
Ontario
Fri 9/25
1:52 pm-12:31 am
2 stops31h 39m
Lancaster
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$452
OntarioLancaster
ONT Ontario - LNS Lancaster
ONTLNS
Ontario
Wed 9/23
1:56 pm-2:31 pm
2 stops21h 35m
Lancaster
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$452
OntarioLancaster
ONT Ontario - LNS Lancaster
ONTLNS
Ontario
Fri 10/16
9:25 am-12:31 am
2 stops12h 06m
Lancaster
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$487
OntarioLancaster
ONT Ontario - LNS Lancaster
ONTLNS
Ontario
Mon 9/21
1:18 pm-12:36 am
2 stops32h 18m
Lancaster
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$502
Showing 1-10 of 18 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Ontario-Lancaster, Pennsylvania flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Lancaster, Pennsylvania flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Lancaster, Pennsylvania flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Lancaster, Pennsylvania flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Lancaster, Pennsylvania flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Ontario to Lancaster
Have a flexible travel schedule? Discover the best time to fly to Lancaster from Ontario with our price prediction graph.
ONT-LNS
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.
Related info for your journey
Find useful and relevant information for your journey from Ontario to Lancaster. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Book flights to Lancaster if you plan to visit one of these locationsManheim
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