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Cheap flights from Ontario to Liberia from $289

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Liberia departing on 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to Liberia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
10:00 pm - 12:00 pmONT  Ontario-LIR Liberia
13h 00m1 stop Atlanta Hartsfield-Jackson
Delta Logo
1:25 pm - 11:14 amLIR  Liberia-ONT Ontario
22h 49m2 stops Atlanta Hartsfield-Jackson Seattle/Tacoma Intl
$661Delta
Sun, Sep 20 - Wed, Sep 30
Delta Logo
9:52 am - 12:00 pmONT  Ontario-LIR Liberia
25h 08m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
1:25 pm - 11:14 amLIR  Liberia-ONT Ontario
22h 49m2 stops Atlanta Hartsfield-Jackson Seattle/Tacoma Intl
$661Delta
Sun, Sep 20 - Wed, Sep 30
Delta Logo
10:00 pm - 12:00 pmONT  Ontario-LIR Liberia
13h 00m1 stop Atlanta Hartsfield-Jackson
Delta Logo
1:25 pm - 11:14 amLIR  Liberia-ONT Ontario
22h 49m2 stops Atlanta Hartsfield-Jackson Seattle/Tacoma Intl
$661Delta
Mon, Sep 21 - Wed, Sep 30
American Airlines Logo
2:22 pm - 1:18 pmONT  Ontario-LIR Liberia
21h 56m2 stops Dallas/Fort Worth Miami
American Airlines Logo
2:18 pm - 12:14 pmLIR  Liberia-ONT Ontario
22h 56m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
$673American Airlines
Thu, Oct 1 - Mon, Oct 5
American Airlines Logo
7:11 pm - 1:18 pmONT  Ontario-LIR Liberia
17h 07m2 stops Phoenix Sky Harbor Intl Miami
American Airlines Logo
2:18 pm - 11:52 pmLIR  Liberia-ONT Ontario
10h 34m1 stop Dallas/Fort Worth
$673American Airlines
Thu, Oct 1 - Mon, Oct 5
American Airlines Logo
1:04 pm - 1:18 pmONT  Ontario-LIR Liberia
23h 14m2 stops Phoenix Sky Harbor Intl Miami
American Airlines Logo
2:47 pm - 12:06 pmLIR  Liberia-ONT Ontario
22h 19m2 stops Miami Phoenix Sky Harbor Intl
$676American Airlines
Tue, Sep 22 - Tue, Sep 29
American Airlines Logo
8:25 am - 1:47 pmONT  Ontario-LIR Liberia
28h 22m1 stop Dallas/Fort Worth
American Airlines Logo
2:18 pm - 11:52 pmLIR  Liberia-ONT Ontario
10h 34m1 stop Dallas/Fort Worth
$682American Airlines
Thu, Oct 1 - Mon, Oct 5
Delta Logo
10:00 pm - 12:00 pmONT  Ontario-LIR Liberia
13h 00m1 stop Atlanta Hartsfield-Jackson
Delta Logo
1:25 pm - 10:24 pmLIR  Liberia-ONT Ontario
9h 59m1 stop Atlanta Hartsfield-Jackson
$710Delta
Sun, Sep 20 - Thu, Oct 1
Delta Logo
10:00 pm - 12:00 pmONT  Ontario-LIR Liberia
13h 00m1 stop Atlanta Hartsfield-Jackson
Delta Logo
1:25 pm - 10:24 pmLIR  Liberia-ONT Ontario
9h 59m1 stop Atlanta Hartsfield-Jackson
$710Delta
Mon, Sep 21 - Thu, Oct 1
Delta Logo
9:52 am - 12:00 pmONT  Ontario-LIR Liberia
25h 08m2 stops Salt Lake City Atlanta Hartsfield-Jackson
Delta Logo
1:25 pm - 10:24 pmLIR  Liberia-ONT Ontario
9h 59m1 stop Atlanta Hartsfield-Jackson
$715Delta
Sun, Sep 20 - Thu, Oct 1

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Delta flights from Ontario to Liberia

Our best Delta deals on Ontario to Liberia flight tickets
Delta
Sep 20
ONT10:00 pmOntario
13h 00m
1 stop
LIR12:00 pmLiberia
Sep 30
LIR1:25 pmLiberia
22h 49m
2 stops
ONT11:14 amOntario
$661
Delta
Sep 20
ONT10:00 pmOntario
13h 00m
1 stop
LIR12:00 pmLiberia
Oct 1
LIR1:25 pmLiberia
9h 59m
1 stop
ONT10:24 pmOntario
$710
Delta
Sep 20
ONT9:52 amOntario
25h 08m
2 stops
LIR12:00 pmLiberia
Oct 1
LIR1:25 pmLiberia
9h 59m
1 stop
ONT10:24 pmOntario
$715

American Airlines flights from Ontario to Liberia

Our best American Airlines deals on Ontario to Liberia flight tickets
American Airlines
Sep 22
ONT1:04 pmOntario
23h 14m
2 stops
LIR1:18 pmLiberia
Sep 29
LIR2:47 pmLiberia
22h 19m
2 stops
ONT12:06 pmOntario
$676
American Airlines
Aug 31
ONT2:27 pmOntario
19h 54m
2 stops
LIR11:21 amLiberia
Sep 5
LIR2:15 pmLiberia
20h 19m
1 stop
ONT9:34 amOntario
$808

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Liberia 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, momondo users made 832,500 searches. Data last updated August 10, 2026.
Use the filters below to find and compare flights from Ontario to Liberia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioLiberia

ONT Ontario - LIR Liberia

ONTLIR

Ontario

Sun 9/20

10:00 pm-12:00 pm

1 stop13h 00m

Liberia

Wed 9/30

1:25 pm-11:14 am

2 stops22h 49m

$661

OntarioLiberia

ONT Ontario - LIR Liberia

ONTLIR

Ontario

Sun 9/20

9:52 am-12:00 pm

2 stops25h 08m

Liberia

Wed 9/30

1:25 pm-11:14 am

2 stops22h 49m

$661

OntarioLiberia

ONT Ontario - LIR Liberia

ONTLIR

Ontario

Mon 9/21

10:00 pm-12:00 pm

1 stop13h 00m

Liberia

Wed 9/30

1:25 pm-11:14 am

2 stops22h 49m

$661

OntarioLiberia

ONT Ontario - LIR Liberia

ONTLIR

Ontario

Thu 10/1

2:22 pm-1:18 pm

2 stops21h 56m

Liberia

Mon 10/5

2:18 pm-12:14 pm

2 stops22h 56m

$673

OntarioLiberia

ONT Ontario - LIR Liberia

ONTLIR

Ontario

Thu 10/1

7:11 pm-1:18 pm

2 stops17h 07m

Liberia

Mon 10/5

2:18 pm-11:52 pm

1 stop10h 34m

$673

OntarioLiberia

ONT Ontario - LIR Liberia

ONTLIR

Ontario

Tue 9/22

1:04 pm-1:18 pm

2 stops23h 14m

Liberia

Tue 9/29

2:47 pm-12:06 pm

2 stops22h 19m

$676

OntarioLiberia

ONT Ontario - LIR Liberia

ONTLIR

Ontario

Thu 10/1

8:25 am-1:47 pm

1 stop28h 22m

Liberia

Mon 10/5

2:18 pm-11:52 pm

1 stop10h 34m

$682
Quickest round-trip

OntarioLiberia

ONT Ontario - LIR Liberia

ONTLIR

Ontario

Sun 9/20

10:00 pm-12:00 pm

1 stop13h 00m

Liberia

Thu 10/1

1:25 pm-10:24 pm

1 stop9h 59m

$710

OntarioLiberia

ONT Ontario - LIR Liberia

ONTLIR

Ontario

Mon 9/21

10:00 pm-12:00 pm

1 stop13h 00m

Liberia

Thu 10/1

1:25 pm-10:24 pm

1 stop9h 59m

$710

OntarioLiberia

ONT Ontario - LIR Liberia

ONTLIR

Ontario

Sun 9/20

9:52 am-12:00 pm

2 stops25h 08m

Liberia

Thu 10/1

1:25 pm-10:24 pm

1 stop9h 59m

$715

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Liberia from

How to get the cheapest flight ticket from Ontario to Liberia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Liberia?

On average, the least expensive day to fly to Liberia from Ontario is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $539. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to Liberia for around $623.

What is the cheapest time of day to depart on your flight to Liberia?

At noon is the cheapest time of day to fly from Ontario to Liberia when you can find flight prices for as low as $515. Flying to Liberia at noon is an ideal time because this is during off-peak travel hours. Flights to Liberia are more costly in the morning, with an average ticket price of $599. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Ontario to Liberia

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Liberia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Liberia (ONT to LIR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Liberia

Fastest flight time

9h 08m

Direct flights

None
The fastest flight from Ontario to Liberia takes 9h 08m
There are no direct flights from Ontario to Liberia. There are no popular flight routes from Ontario to Liberia.
Search flight deals

Frequently asked questions about flying from Ontario to Liberia

  • How far is Ontario to Liberia by plane?

    Ontario and Liberia are 2596.5 mi apart from one another. A reasonable flight in good conditions will take 9h 08m.

  • When did momondo last update prices for flights from Ontario Airport to Liberia Airport?

    Prices for flights from Ontario Airport to Liberia Airport are updated daily.

  • How old do you have to be to fly from Ontario Airport to Liberia Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Liberia Airport.

  • What documentation or ID do you need to fly to Liberia Airport?

    The necessary travel and health documents for your Liberia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Liberia?

Book flights to Liberia if you plan to visit one of these locations
Culebra
Playa Hermosa
Coco

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Liberia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Liberia for you.

Can I find flights from Ontario to Liberia with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Liberia from Ontario with this policy.

How can momondo help me find flights from Ontario to Liberia?

Once all potential Ontario to Liberia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Liberia right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Liberia from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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