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Cheap flights from Ontario to Liberia from $1,299

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 6/16. 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
0 bags

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Find the cheapest flights from Ontario to Liberia

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:30 am - 7:50 pm
ONT
-
ROB
30h 20m
3 stops
United Airlines Logo
9:10 pm - 10:51 pm
ROB
-
ONT
32h 41m
2 stops
$2,180United Airlines
Sat, Jul 4 - Tue, Jul 14
Multiple Airlines Logo
11:53 pm - 2:30 pm
ONT
-
ROB
31h 37m
3 stops
Multiple Airlines Logo
3:40 pm - 10:35 pm
ROB
-
ONT
61h 55m
3 stops
$2,349Multiple Airlines
Thu, Jun 18 - Sat, Jul 4
United Airlines Logo
7:00 am - 7:50 pm
ONT
-
ROB
29h 50m
3 stops
United Airlines Logo
9:10 pm - 10:31 pm
ROB
-
ONT
32h 21m
2 stops
$2,799United Airlines
Sat, Apr 25 - Tue, Apr 28

United Airlines flights from Ontario to Liberia

Our best United Airlines deals on Ontario to Liberia flight tickets
United Airlines
Jul 4
ONT6:30 amOntario
30h 20m
3 stops
ROB7:50 pmMonrovia Roberts Intl
Jul 14
ROB9:10 pmMonrovia Roberts Intl
32h 41m
2 stops
ONT10:51 pmOntario
$2,180
United Airlines
Apr 25
ONT7:00 amOntario
29h 50m
3 stops
ROB7:50 pmMonrovia Roberts Intl
Apr 28
ROB9:10 pmMonrovia Roberts Intl
32h 21m
2 stops
ONT10:31 pmOntario
$2,799

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 April 13, 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

OntarioMonrovia

ONT - ROB

ONTROB

Ontario

Sat 7/4

6:30 am-7:50 pm

3 stops30h 20m

Monrovia Roberts Intl

Tue 7/14

9:10 pm-10:51 pm

2 stops32h 41m

$2,180

OntarioMonrovia

ONT - ROB

ONTROB

Ontario

Thu 6/18

11:53 pm-2:30 pm

3 stops31h 37m

Monrovia Roberts Intl

Sat 7/4

3:40 pm-10:35 pm

3 stops61h 55m

$2,349
Quickest round-trip

OntarioMonrovia

ONT - ROB

ONTROB

Ontario

Sat 4/25

7:00 am-7:50 pm

3 stops29h 50m

Monrovia Roberts Intl

Tue 4/28

9:10 pm-10:31 pm

2 stops32h 21m

$2,799
Cheapest one-way

OntarioMonrovia

ONT - ROB

ONTROB

Ontario

Tue 6/16

11:53 pm-7:55 pm

3 stops37h 02m

$1,299
Quickest one-way

OntarioMonrovia

ONT - ROB

ONTROB

Ontario

Sat 5/2

7:00 am-7:50 pm

3 stops29h 50m

$4,045

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 airline that flies from Ontario to Liberia?

United Airlines is the most popular carrier operating from Ontario to Liberia

Cheap Ontario to Liberia flight deals and tips

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

Fastest flight time

31h 37m

Direct flights

None
The fastest flight from Ontario to Liberia takes 31h 37m
There are no direct flights from Ontario to Liberia. There are no popular flight routes from Ontario to Liberia.
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Frequently asked questions about flying from Ontario to Liberia

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

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

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

    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.

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

    The necessary travel and health documents for your Liberia 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.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Liberia from Ontario.

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

momondo does allow users to show only those flights to Liberia from Ontario which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Liberia from Ontario.

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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Wed 5/13
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