Find flights
Deals
When to book
FAQs & Tips
Airlines

Find cheap flights from Oakland to Illinois from $40

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Oakland to Illinois departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 6/27
Thu 7/4

Search hundreds of travel sites at once for deals on flights to Illinois

In the last 7 days travelers have searched 42,816,550 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Best Illinois Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Chicago
Chicago1 stop$161
Bloomington
Bloomington2 stops$652
Champaign
Champaign2 stops$945
St. Louis
St. Louis1 stop$139

Good to know

Low season

February

High season

June

Cheapest flight

$40
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly with an average 47% increase in price.
Flight from Oakland to St. Louis

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Oakland to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Oakland to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Oakland to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Illinois from Oakland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Oakland to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Illinois with an airline and back to Oakland with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Oakland to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Illinois from Oakland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Illinois

  • Morning departure is around 7% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top airlines flying from Oakland to Illinois

 
Need help choosing which airline to fly with from Oakland to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10502 reviews
7.4Food
8.6Crew
7.9Comfort
8.2Boarding
8.0Entertainment
Airline reviews

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

10.0 ExcellentMichael, May 2024SJC - ATL
Read more about Delta reviews

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

There was a loud squeaky sound the whole time we were flying.

I usually have a positive experience with Delta. Complimentary upgrades are always nice!

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

The crew was the best and very accommodating I know you don't offer any complimentary items but water and coffee will not break the bank !!

Crew was nice, explained emergency protocol very well. Flight took off and arrived on time. Pilot explained the small delay that occurred with docking and providing updates. I would definitely fly spirit again.

The seat are terrible. Don’t even think of sleeping on a Spirit flight. The kids that run the plane aka flight attendants are pretty rude and straight forward. They get the job done but without class.

I had a death in my family and booked my flight on Spirit. My flight was cancelled the morning of my flight, no explanation, no help to rebook, nobody to talk to. The next available flight was 2days later !!!! Terrible airline, will NEVER fly with them again!

They took a horrible route with a lot of turbulence and I eneded up getting sick. Even if the flight takes longer. Don't put people life at risk just to get to the airport on time.

Every thing was fine ,low price,easy on time ,clean, good staff, really no issues

Its so random that they only allow 40 pounds on checked bags when all airlines take 55. They then charge you for each 10 extra pounds, so my checked suitcase was $130 and the flight $30 ... its like whattt, im for sure not traveling with Spirit again

Had to board plan 2x due to lack of security check after 1st boarding

Miserable. The crew was rude, the flight was delayed 5 hours for mechanical reasons and then “weather” even though other planes were leaving.

They kept Changing the flight times. It was delayed several times and at one point it was supposed to depart at 3.40am! At which point we ended up staying overnight and booked long a separate United flight for early morning departure. The spirit flight then got moved up and left at 1.30 in the morning when it was supposed to leave at 9.40pm the night before.

Book cheap flights from Oakland to Illinois

Recent round-trip flight deals

6/5Wed
1 stopSpirit Airlines
5h 50mOAK-STL
6/12Wed
1 stopSpirit Airlines
8h 33mSTL-OAK
$139
6/11Tue
1 stopSpirit Airlines
7h 13mOAK-ORD
6/18Tue
1 stopSpirit Airlines
15h 11mORD-OAK
$161
7/14Sun
1 stopSun Country Air
17h 11mOAK-ORD
7/18Thu
1 stopSun Country Air
12h 07mORD-OAK
$191
7/10Wed
1 stop
7h 51mOAK-STL
7/14Sun
2 stops
31h 42mSTL-OAK
$197
7/10Wed
1 stop
7h 51mOAK-STL
7/14Sun
1 stop
24h 13mSTL-OAK
$200
10/12Sat
1 stopDelta
9h 25mOAK-ORD
10/16Wed
1 stopDelta
6h 56mORD-OAK
$236
10/7Mon
1 stopDelta
7h 37mOAK-ORD
10/12Sat
1 stopDelta
10h 19mORD-OAK
$262
6/24Mon
nonstopSouthwest
4h 00mOAK-MDW
6/26Wed
nonstopSouthwest
4h 30mMDW-OAK
$341
6/24Mon
nonstopSouthwest
4h 00mOAK-MDW
6/26Wed
1 stopSouthwest
6h 40mMDW-OAK
$384
6/27Thu
1 stopSun Country Air
16h 25mOAK-STL
6/30Sun
1 stopSun Country Air
7h 08mSTL-OAK
$427

Search by stops

Search by airline

Search by price

Recent one-way flight deals

6/4Tue
1 stopSpirit Airlines
13h 36mOAK-STL
$40
6/5Wed
1 stopSpirit Airlines
5h 50mOAK-STL
$62
6/12Wed
1 stop
7h 20mOAK-RFD
$74
7/2Tue
1 stop
22h 46mOAK-RFD
$80
6/9Sun
1 stopSun Country Air
17h 07mOAK-ORD
$111
6/9Sun
1 stopSun Country Air
17h 07mOAK-ORD
$113
7/20Sat
2 stopsDelta
13h 38mOAK-MDW
$123
7/20Sat
2 stopsDelta
14h 11mOAK-ORD
$123
6/24Mon
1 stopSouthwest
6h 55mOAK-MDW
$173
6/24Mon
nonstopSouthwest
4h 00mOAK-MDW
$183

Search by stops

Search by airline

Search by price

Last minute flights from Oakland to Illinois

Last minute flight, train and bus deals

6/1Sat
multi-stopSpirit Airlines
12h 48mOAK-ORD
6/5Wed
multi-stopSpirit Airlines
27h 32mORD-OAK
$258
5/31Fri
multi-stopSpirit Airlines
23h 10mOAK-ORD
6/4Tue
multi-stopSpirit Airlines
14h 20mORD-OAK
$261
5/31Fri
multi-stopSpirit Airlines
23h 10mOAK-ORD
6/4Tue
multi-stopSpirit Airlines
15h 33mORD-OAK
$279
6/2Sun
multi-stopSun Country Air
15h 19mOAK-ORD
6/5Wed
multi-stopSun Country Air
28h 53mORD-OAK
$325
5/30Thu
multi-stop
38h 11mOAK-ORD
6/4Tue
multi-stop
27h 34mORD-OAK
$350
5/30Thu
multi-stop
10h 49mOAK-STL
6/1Sat
multi-stop
26h 32mSTL-OAK
$406
5/29Wed
multi-stopDelta
8h 59mOAK-ORD
6/5Wed
multi-stopDelta
6h 21mORD-OAK
$528
5/30Thu
multi-stopDelta
10h 17mOAK-MDW
6/4Tue
multi-stopDelta
11h 36mMDW-OAK
$533
5/30Thu
multi-stopAlaska Airlines
7h 24mOAK-ORD
6/1Sat
multi-stopAlaska Airlines
8h 15mORD-OAK
$640
5/30Thu
multi-stopAlaska Airlines
7h 24mOAK-ORD
6/1Sat
multi-stopAlaska Airlines
20h 05mORD-OAK
$679

Search by stops

Search by airline

Search by price

Oakland - Illinois Flights

Departure:

Oakland (OAK)United States

Return flight deals:

Illinois - Oakland

Cabin classes: