Cheap flights from Oakland (OAK) to Illinois (IL)

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How to find the cheapest flight from
Oakland (OAK) to Illinois

All the information you need to plan the best OAK to ORD flight in 2021: compare Oakland to Illinois flight prices with the expected peak season, weather and rainfall in Illinois.
How far in advance should I book a flight from Oakland, California to Illinois?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 32 days in advance, which can save you up to 57% on flights from Oakland, California to Illinois compared to booking the week you need them. Waiting 32 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $363. For sooner than that we have options available in the next 3 days from $479.

When is the cheapest time to fly from Oakland, California to Illinois (OAK - IL)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Oakland, California to Illinois as you normally would.

What is the cheapest month to fly from Oakland, California to Illinois?

Our data shows that August tends to be the cheapest month to fly to Illinois from Oakland, California. Users have commonly found prices around $287 for the month, but tickets can be as low as $118. Due to multiple factors, prepare for potentially higher prices in December.

Cheap flights from Oakland to Illinois in December, January 2022

The best prices found for OAK to Illinois flights for December, January
15 Jan - 18 Jan
$91pp
OAK
Oakland
Spirit Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
 
1 STOP
OAK
Oakland
15 Jan - 18 Jan
$97pp
OAK
Oakland
Spirit Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
   
2 STOPS
OAK
Oakland
15 Jan - 17 Jan
$102pp
OAK
Oakland
Spirit Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
   
2 STOPS
OAK
Oakland

Oakland to Illinois 2022 flight deals

Cheap flights to Illinois from Oakland found for this year
11 Dec - 11 Jan
$128pp
OAK
Oakland
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
OAK
Oakland
11 Dec - 15 Dec
$130pp
OAK
Oakland
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
OAK
Oakland
6 Dec - 14 Dec
$132pp
OAK
Oakland
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
OAK
Oakland

Non-stop flights to Illinois from Oakland

Save time with Oakland to Illinois direct flight deals
12 May - 21 May
$151pp
OAK
Oakland
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
OAK
Oakland
11 May - 19 May
$161pp
OAK
Oakland
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
OAK
Oakland
6 May - 8 May
$171pp
OAK
Oakland
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
OAK
Oakland

Last minute flights from Oakland to Illinois

Late deals on round-trip flights to Illinois from Oakland, departing today and this week
11 Dec - 11 Jan
$128pp
OAK
Oakland
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
OAK
Oakland
11 Dec - 15 Dec
$130pp
OAK
Oakland
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
OAK
Oakland
6 Dec - 14 Dec
$132pp
OAK
Oakland
Frontier
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Frontier
 
1 STOP
OAK
Oakland

One-way flights to Illinois from Oakland

The cheapest one-way flights from Oakland to Illinois
2:48 pm - 4:05 pm
Frontier
1 Stop
23h 17m
OAK - ORD
Frontier
$70
Flights by SU
9:22 am - 1:42 pm
Spirit Airlines
2 Stops
26h 20m
OAK - STL
Spirit Airlines
$72
FareScan
3:55 am - 3:48 pm
Multiple Airlines
1 Stop
9h 53m
OAK - RFD
Multiple Airlines
$73
Gotogate

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Oakland</span> to <span class="emphasized">Illinois</span> flights.

Flight FAQs

From Oakland to Illinois

What airport do you fly from for flights from Oakland to Illinois?

Most people fly from Oakland (OAK) if they book a flight from Oakland to Illinois. Oakland is conveniently located just 7.0 mi from Oakland’s city center.

Which airlines flying from Oakland to Illinois have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Spirit Airlines, Delta, and United Airlines flying from Oakland to Illinois have implemented new flexible cancellation policies.

Can I find flights from Oakland, California to Illinois for under $100 on Cheapflights?

Yes, there are multiple flights from Oakland, California to Illinois for under $100. The cheapest flight booked recently is on Spirit Airlines for just $91, but on average you can expect to pay $113.

Are there nonstop flights from Oakland, California to Illinois for under $200 on Cheapflights?

Cheapflights has at least 9 direct flights from Oakland, California to Illinois under $200. A good price for a nonstop flight from Oakland, California to Illinois is less than $232.

Are there last-minute flights available from Oakland, California to Illinois for under $200?

There are currently 20+ open flights from Oakland, California to Illinois within the next 7 days for less than $200.

What are the most popular routes from Oakland, California to Illinois?

When deciding which route to take from Oakland, California to Illinois consider Oakland - Chicago O'Hare Intl, Oakland - Chicago Midway or Oakland - Lambert-St Louis as they are the most popular.

What are the most popular airlines that fly from Oakland, California to Illinois?

The most popular airlines flying from Oakland, California to Illinois are American Airlines, Alaska Airlines and Delta. Something to consider prior to booking your flight.

What are the cheapest flights from Oakland, California to Illinois?

On average you can expect to pay $322 for a flight from Oakland, California to Illinois. The cheapest flight overall is $45 while the most popular route, (Oakland - Chicago O'Hare Intl) is currently priced at $91.

COVID Restrictions

View COVID Travel Restrictions for Illinois (IL)

Do I need a COVID test to fly to Illinois from Oakland?

Information is based on travel restrictions for travel to Illinois within the United States

Most visitors from Oakland need to provide a negative COVID-19 test result and/or quarantine to enter Illinois.

COVID-19 testing requirements
Visitors from Oakland must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Illinois.

Quarantine requirements
Visitors from Oakland are not required to quarantine after entering Illinois.

Do I need a test to fly back to Oakland from Illinois?

Returning to Oakland from Illinois

COVID-19 testing requirements
Visitors from Illinois must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Oakland.

Quarantine requirements
Visitors from Illinois are not required to quarantine after entering Oakland.

Hide COVID Travel Restrictions for Illinois (IL)

Destination points for flights from Oakland to Illinois

Select to see more specific information for flights from Oakland to all places in Illinois.

Destination information for Illinois

Things to know before you go - useful duration and weather info for your trip from Oakland to Illinois.

Airports servicing Oakland

Airports servicing

Bloomington (BMI)
Champaign (CMI)
Decatur (DEC)
Moline (MLI)
Marion (MWA)

Top 5 airlines flying from Oakland to Illinois

The chart below displays the airlines Cheapflights users traveling from Oakland to Illinois choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Alaska Airlines
$123 $299 No cancel fee 75%
American Airlines
$138 $399 No cancel fee 71%
United Airlines
$138 $386 No cancel fee 69%
Spirit Airlines
$143 $298 No cancel fee 65%
Delta
$147 $525 No cancel fee N/A
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