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Cheap flights from Los Angeles to Illinois from £45

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Los Angeles to Illinois departing on 27/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from Los Angeles to Illinois

Cheap return flights

Logo
05:50 - 11:59LAX-ORD
4h 09mdirect
Logo
06:30 - 08:59ORD-LAX
4h 29mdirect
£103
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Sun, 28 Sep - Sun, 5 Oct
Frontier Logo
06:35 - 09:37LAX-ORD
25h 02m1 stop
Frontier Logo
06:30 - 08:59ORD-LAX
4h 29mdirect
£105Frontier
Find Deal
Sun, 28 Sep - Sun, 5 Oct
Spirit Airlines Logo
12:05 - 18:14LAX-ORD
4h 09mdirect
Spirit Airlines Logo
13:26 - 23:38ORD-LAX
12h 12m1 stop
£118Spirit Airlines
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Sat, 4 Oct - Wed, 8 Oct
Frontier Logo
06:35 - 09:37LAX-ORD
25h 02m1 stop
Frontier Logo
05:10 - 12:13ORD-LAX
9h 03m1 stop
£120Frontier
Find Deal
Sun, 28 Sep - Sun, 5 Oct
Spirit Airlines Logo
07:00 - 17:21LAX-ORD
8h 21m1 stop
Spirit Airlines Logo
13:26 - 23:38ORD-LAX
12h 12m1 stop
£136Spirit Airlines
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Mon, 6 Oct - Wed, 8 Oct
United Airlines Logo
06:00 - 12:18LAX-ORD
4h 18mdirect
United Airlines Logo
15:40 - 18:15ORD-LAX
4h 35mdirect
£145United Airlines
Find Deal
Sat, 18 Oct - Tue, 28 Oct
United Airlines Logo
06:00 - 12:18LAX-ORD
4h 18mdirect
United Airlines Logo
07:10 - 09:37ORD-LAX
4h 27mdirect
£151United Airlines
Find Deal
Wed, 15 Oct - Fri, 17 Oct
United Airlines Logo
06:00 - 12:10LAX-ORD
4h 10mdirect
United Airlines Logo
21:18 - 23:59ORD-LAX
4h 41mdirect
£157United Airlines
Find Deal
Thu, 6 Nov - Thu, 6 Nov
Alaska Airlines Logo
14:06 - 00:04LAX-ORD
7h 58m1 stop
Alaska Airlines Logo
14:05 - 20:37ORD-LAX
8h 32m1 stop
£159Alaska Airlines
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Sat, 20 Sep - Wed, 29 Oct
Alaska Airlines Logo
14:06 - 00:04LAX-ORD
7h 58m1 stop
Alaska Airlines Logo
06:00 - 13:15ORD-LAX
9h 15m1 stop
£165Alaska Airlines
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Sat, 20 Sep - Thu, 30 Oct

Sun Country Air flights from Los Angeles to Illinois

Our best Sun Country Air deals on Los Angeles to Illinois flight tickets
Sun Country Air
25 Sept
LAX10:30Los Angeles
6h 42m
1 stop
ORD19:12Chicago O'Hare Intl
30 Oct
ORD19:21Chicago O'Hare Intl
16h 17m
1 stop
LAX09:38Los Angeles
£184
Find similar
Sun Country Air
5 Sept
LAX10:35Los Angeles
6h 37m
1 stop
ORD19:12Chicago O'Hare Intl
7 Sept
ORD19:02Chicago O'Hare Intl
18h 13m
1 stop
LAX11:15Los Angeles
£186
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Sun Country Air
25 Sept
LAX18:09Los Angeles
22h 27m
1 stop
ORD18:36Chicago O'Hare Intl
28 Sept
ORD18:33Chicago O'Hare Intl
16h 47m
1 stop
LAX09:20Los Angeles
£201
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Delta flights from Los Angeles to Illinois

Our best Delta deals on Los Angeles to Illinois flight tickets
Delta
4 Oct
LAX22:45Los Angeles
7h 20m
1 stop
ORD08:05Chicago O'Hare Intl
28 Oct
ORD08:55Chicago O'Hare Intl
7h 19m
1 stop
LAX14:14Los Angeles
£160
Find similar
Delta
13 Oct
LAX21:45Los Angeles
8h 47m
1 stop
ORD08:32Chicago O'Hare Intl
15 Oct
ORD14:25Chicago O'Hare Intl
8h 11m
1 stop
LAX20:36Los Angeles
£166
Find similar
Delta
5 Sept
LAX13:25Los Angeles
6h 10m
1 stop
ORD21:35Chicago O'Hare Intl
6 Sept
ORD14:25Chicago O'Hare Intl
7h 54m
1 stop
LAX20:19Los Angeles
£185
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Los Angeles to Illinois 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 279,928 searches. Data last updated 15 August 2025.
Use the filters below to find and compare flights from Los Angeles to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Sun 28/9

05:50-11:59

Nonstop4h 09m

Chicago O'Hare Intl

Sun 5/10

06:30-08:59

Nonstop4h 29m

£103

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Sun 28/9

06:35-09:37

1 stop25h 02m

Chicago O'Hare Intl

Sun 5/10

06:30-08:59

Nonstop4h 29m

£105

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Sat 4/10

12:05-18:14

Nonstop4h 09m

Chicago O'Hare Intl

Wed 8/10

13:26-23:38

1 stop12h 12m

£118

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Sun 28/9

06:35-09:37

1 stop25h 02m

Chicago O'Hare Intl

Sun 5/10

05:10-12:13

1 stop9h 03m

£120

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Mon 6/10

07:00-17:21

1 stop8h 21m

Chicago O'Hare Intl

Wed 8/10

13:26-23:38

1 stop12h 12m

£136

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Sat 18/10

06:00-12:18

Nonstop4h 18m

Chicago O'Hare Intl

Tue 28/10

15:40-18:15

Nonstop4h 35m

£145

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Wed 15/10

06:00-12:18

Nonstop4h 18m

Chicago O'Hare Intl

Fri 17/10

07:10-09:37

Nonstop4h 27m

£151

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Thu 6/11

06:00-12:10

Nonstop4h 10m

Chicago O'Hare Intl

Thu 6/11

21:18-23:59

Nonstop4h 41m

£157

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Sat 20/9

14:06-00:04

1 stop7h 58m

Chicago O'Hare Intl

Wed 29/10

14:05-20:37

1 stop8h 32m

£159

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Sat 20/9

14:06-00:04

1 stop7h 58m

Chicago O'Hare Intl

Thu 30/10

06:00-13:15

1 stop9h 15m

£165

Flights are sorted by cheapest return flights first.

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

How to get the cheapest flight ticket from Los Angeles to Illinois

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 month to fly to Illinois?

The month of February is, on average, the cheapest month to fly to Illinois from Los Angeles, with most prices found around £181. If you aren’t able to travel to Illinois during the month of February, then flying in May is also cheap. Prices for this month can be found on momondo for an average of £198.

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

The cheapest day to depart on your flight to Illinois is on a Tuesday when prices can be found for as low as £175. This is often the case because there is less demand to fly during this day of the week. Flights from Los Angeles to Illinois on a Monday will generally be more expensive and average around £793. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our data shows that the cheapest Los Angeles to Illinois flights are usually those with departure times in the afternoon. Our users have found flights to Illinois in the afternoon for as low as £230. At midday is when there is more demand to fly to Illinois, so prices are often more expensive at around £795 per ticket.

What is the cheapest Los Angeles to Illinois flight route?

Fly from Los Angeles to Chicago Midway for the best Los Angeles - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Los Angeles when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around £221 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Los Angeles for as low as £186 on momondo.

What cabin class options are available on Los Angeles to Illinois flights?

There are 4 cabin classes available to choose from on Los Angeles to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Los Angeles to Illinois flights?

You could potentially save up to 11% on your flight if you consider stops on a Los Angeles to Illinois flight.

Cheap Los Angeles to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Los Angeles to Illinois

Best price found

£45

Fastest flight time

3h 35m

Direct flights

Every day

Airports in Illinois

2 airports
The best one-way flight to Illinois from Los Angeles in the past 72 hours is £45. The best return flight deal from Los Angeles to Illinois found on momondo in the last 72 hours is £103.
The fastest flight from Los Angeles to Illinois takes 3h 35m
Direct flights go from Los Angeles to Illinois every day.
There are 2 airports near Illinois: Chicago O'Hare Intl (ORD), Lambert-St Louis (STL)
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  • When did momondo last update prices for flights from Los Angeles Airport to Illinois?

    Prices for flights from Los Angeles Airport to Illinois were last updated today.

  • How old do you have to be to fly from Los Angeles Airport to Illinois?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Los Angeles Airport to Illinois.

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

    The necessary travel and health documents for your Illinois 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.

  • What is the most popular plane model from Los Angeles to Illinois?

Why use momondo?

Why should I use momondo to find a flight deal from Los Angeles to Illinois?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Los Angeles to Illinois . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Los Angeles to Illinois with flexible booking policies on momondo?

Flights from Los Angeles to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Los Angeles to Illinois?

momondo provides multiple filters to help you find the best flight to Illinois from Los Angeles. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Los Angeles to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.

An easier way to manage your Illinois trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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