Find Cheap Flights from Illinois to Washington

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

Fri 2/23
Fri 3/2
Any month
Compare vs. KAYAK |

Book cheap flights from Illinois to Washington (round-trip)

Airports
Origin
Chicago
$174
only
$174
Destination
Washington
$174
only
$174
$194
only
$194
Tue, Mar 27
ORD
IAD
13h 39m
Wed, Mar 28
IAD
ORD
2h 02m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Mediocre 3.0

This flight was delayed around 3 hours.

ORD
IAD
Mediocre 3.3

Go

ORD
IAD
Good 6.6

Service

Total disaster due to some snow, excessive delays

ORD
IAD
Mediocre 2.0

Again- nothing

This flight was canceled for me! Why am I being asked how I would rate it?!

ORD
IAD
Excellent 9.0

Had to pay for movies and snacks.

Wed, May 2
ORD
DCA
5h 38m
Mon, May 7
DCA
ORD
7h 09m
Trip: 6 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 8511 reviews
Overall
8.2
Boarding
8.3
Comfort
8.3
Crew
8.6
Entertainment
8.0
Food
7.8
PHL
BOS
Good 6.8

Crew and comfort of flight was oustanding.

The ground crew was definitely not paying attention and didn't position the flightway correctly which signfiicantly delayed getting folks off the flight and us on. This is incompetence.

BOS
MSY
Excellent 9.3

Departure on time. Arrived early. Good snacks, WiFi and TV. Bags arrived easily.

Wish there were movies (flight just under 4 hours)

BWI
MCO
Excellent 8.6

Flight attendants were very pleasant.

LIR
JFK
Mediocre 3.6

The second flight attendant approached was helpful.

Upon boarding an odor of vomit was obvious. An attendant announced that a previous passenger had been sick in the row and there was no time to adequately clean it. There was only one food option available for purchase. Neither the overhead reading light or entertainment system at my seat worked. The first attendant I approached told me she could find me a seat in the back of the plane. I declined as I reserved a seat in the front of the plane in order to deplane and go through customs swiftly. I was then offered a seat directly behind the row where the passenger had vomited. Eventually, a different attendant placed me in a seat nearer the front of the place where both the light and entertainment system worked.

BDL
FLL
Excellent 10.0

lots of room.

not one thing all good

Mon, Apr 30
ORD
IAD
17h 11m
Tue, May 8
IAD
ORD
8h 29m
Trip: 9 days
6.1GoodShow reviews
Overall 6.1 Good
Based on 21 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ORD
IAD
Excellent 10.0

This was the first time I have flown Frontier. Even with a checked bag fee ($30 each way), my total fare was still less than half of what it would have been for competitors the same week. The planes were clean, flights were on time, and the crew were extremely friendly and helpful!

There wasn't anything not to like! The experience was seriously better than I imagined it would be.

AUS
PHX
Good 6.0

Flight was delayed

ORD
IAD
Okay 4.3

The whole trip is pretty bad. It is delayed for 5 hours. And no free water on the airplane. You basically has to pay for everything: food, checking luggage, and carryon bags. No entertainment at all. The flight tickets are not cheaper anyway.

ORD
IAD
Okay 4.3

All the extra expenses for seats, baggage, ect.

ORD
IAD
Mediocre 3.3

The price

Both there and back our flight was delayed over an hour. The seats were very uncomfortable and with little leg room. when you check in on line it seems like you you don't have any other option but to pay for your seats. Don't do it-- just have them pick your seats-- you will be with your travel mate most likely. If money is a concern and you don't mind being delayed, then it is worth it. Otherwise don't do it!

Tue, May 1
ORD
DCA
1h 47m
Mon, May 7
DCA
ORD
7h 09m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Tue, May 15
ORD
DCA
1h 59m
Sat, May 26
DCA
ORD
2h 15m
Trip: 12 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 58 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
ORD
DCA
Okay 5.0

When we landed in Washington DC we sat on the Tarmac for an hour because there was no gate for the plane to park at. This caused me to miss my connection flight to Albany. I was put on a standby list for a flight that was leaving 7 hours later. They never offered to give me a meal voucher.

ORD
DCA
Excellent 8.8

Once I made it, they worked to get me on the plane from Chicago quickly.

I barely made it for my flight in Chicago and that was with running. They were already boarding the other plane when my plane from Hattiesburg landed. Earlier in the day I had to get them to change my flight from Chicago in Hattiesburg because it wasn't changed for me when the delay had my original flight leaving before I was to land in Chicago. I don't fault them for someone getting sick at the last minute or my inconvenience, but it was still inconvenient.

ORD
DCA
Good 7.2

Friendly crew, comfortable space, good snacks.

ORD
DCA
Excellent 8.0

Should be allowed one checked bag per person at no charge.

ORD
DCA
Mediocre 2.0

The flight was cancelled. I didn't receive a refund or free hotel accommodations. I've been on flights in Africa where free hotel accommodations were standard for a layover over 3 hours. A little embarrassing that an airline in America can't afford a hotel for people stranded in a city overnight.

Tue, Apr 17
ORD
IAD
8h 45m
Wed, Apr 18
IAD
ORD
1h 57m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Excellent 9.0

Had to pay for movies and snacks.

ORD
IAD
Good 6.6

Service

Total disaster due to some snow, excessive delays

ORD
IAD
Good 6.0

Had to check a bag I've carried on several other times.

ORD
IAD
Mediocre 2.0

Flight delayed- missed connection. No easy way to get Home to Vermont. Flew to Boston and rented car!

ORD
IAD
Mediocre 2.0

Again- nothing

This flight was canceled for me! Why am I being asked how I would rate it?!

Wed, May 2
ORD
DCA
8h 34m
Mon, May 7
DCA
ORD
7h 09m
Trip: 6 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 8511 reviews
Overall
8.2
Boarding
8.3
Comfort
8.3
Crew
8.6
Entertainment
8.0
Food
7.8
LAX
JFK
Good 6.6

in plane travel comfort

Airport luggage & kiosk check in: no staff help. TSA was too long. Arrived 1.5 hrs before flight, arrived at gate 5 minutes before gate closed.

BOS
MSY
Excellent 9.3

Departure on time. Arrived early. Good snacks, WiFi and TV. Bags arrived easily.

Wish there were movies (flight just under 4 hours)

PHL
BOS
Good 6.8

Crew and comfort of flight was oustanding.

The ground crew was definitely not paying attention and didn't position the flightway correctly which signfiicantly delayed getting folks off the flight and us on. This is incompetence.

BDL
FLL
Excellent 10.0

lots of room.

not one thing all good

JFK
SFO
Excellent 10.0

Yese

Everything was great

Tue, May 1
ORD
IAD
8h 31m
Tue, May 8
IAD
ORD
8h 29m
Trip: 8 days
6.1GoodShow reviews
Overall 6.1 Good
Based on 21 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ORD
IAD
Good 7.3

There wasn't any in flight entertainment and I didn't order food, so that's why my rating is neutral. Our flight back was 30 min early, so that was great.

ORD
IAD
Mediocre 3.0

Not much, the time it takes to get to the places is short which is nice.

Delayed flight, only $15 dollars of food too late and not acceptable at restaurants, too long of a delayed flight.

MIA
PHL
Okay 5.3

Boarding was smooth and fast. The travel time was a bit faster than predicted too.

With lack of reclining seats and no complimentary snacks or drinks at all, the comfort scale is lacking. Even the tray tables were replaced by miniature, undersized, pieces. Even with the discounted prices, it’s hard to want to fly with them again.

ORD
IAD
Excellent 8.0

Easy boarding easy check in

Nothing that bad, chairs are maybe a bit thin but not terribly uncomfortable

ORD
IAD
Excellent 8.0

to expensive to cary on a bag.

Mon, Mar 26
ORD
IAD
11h 29m
Tue, Mar 27
IAD
ORD
2h 02m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Mediocre 2.0

Again- nothing

This flight was canceled for me! Why am I being asked how I would rate it?!

ORD
IAD
Excellent 10.0

For the basic economy seat there was plenty of room and the staff was excellent. Honestly the best domestic flight I've taken in a long time.

ORD
IAD
Excellent 8.0

Everything went pretty well minus the delayed flight from the start

Some older woman yelling at a teenager for "pushing her in the back of her seat" while in flight

ORD
IAD
Mediocre 3.0

This flight was delayed around 3 hours.

ORD
IAD
Mediocre 3.3

Go

Wed, May 2
ORD
DCA
4h 48m
Wed, May 9
DCA
ORD
1h 58m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sat, May 19
ORD
DCA
1h 47m
Tue, May 22
DCA
ORD
2h 15m
Trip: 4 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 58 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
ORD
DCA
Excellent 9.3

Excellent for a short flight. Good entertainment and a smooth ride.

ORD
DCA
Excellent 8.8

Once I made it, they worked to get me on the plane from Chicago quickly.

I barely made it for my flight in Chicago and that was with running. They were already boarding the other plane when my plane from Hattiesburg landed. Earlier in the day I had to get them to change my flight from Chicago in Hattiesburg because it wasn't changed for me when the delay had my original flight leaving before I was to land in Chicago. I don't fault them for someone getting sick at the last minute or my inconvenience, but it was still inconvenient.

ORD
DCA
Okay 4.3

Seats were really neither notably comfortable nor notably uncomfortable. I think they were slightly on the comfortable side.

Would be nice to have more modern aircraft amenities, like power outlets for device charging, and display screens with at least some complimentary entertainment, or at least flight path tracking. Boarding counter lady was obnoxiously strict about not letting our carry-on bags to be carry-on. She made us test them in the size device and said they were too big, even though they could easy be pushed into the space, and regardless of the fact that we just flew on an American Airlines flight with them as carry-on and were only on a layover with them! Regarding the previous AA agent who let them be carry-on, she said "shame on them." Complete opposite of the positive experience we had with her counterpart in Phoenix. ಠ_ಠ

ORD
DCA
Mediocre 2.0

The flight was cancelled. I didn't receive a refund or free hotel accommodations. I've been on flights in Africa where free hotel accommodations were standard for a layover over 3 hours. A little embarrassing that an airline in America can't afford a hotel for people stranded in a city overnight.

ORD
DCA
Excellent 10.0

The boarding process was easy and on flight service was on point.

Mon, Mar 26
ORD
IAD
11h 29m
Tue, Mar 27
IAD
ORD
2h 02m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Excellent 10.0

For the basic economy seat there was plenty of room and the staff was excellent. Honestly the best domestic flight I've taken in a long time.

ORD
IAD
Good 6.0

Had to check a bag I've carried on several other times.

ORD
IAD
Excellent 8.0

Everything went pretty well minus the delayed flight from the start

Some older woman yelling at a teenager for "pushing her in the back of her seat" while in flight

ORD
IAD
Excellent 9.0

Had to pay for movies and snacks.

ORD
IAD
Excellent 10.0

The crew was very polite at every moment

I really liked everything

Sat, May 5
ORD
DCA
1h 51m
Mon, May 7
DCA
ORD
7h 09m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 10
ORD
DCA
6h 49m
Tue, Apr 17
DCA
ORD
8h 46m
Trip: 8 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 8511 reviews
Overall
8.2
Boarding
8.3
Comfort
8.3
Crew
8.6
Entertainment
8.0
Food
7.8
JFK
SFO
Excellent 10.0

Yese

Everything was great

FLL
DCA
Okay 5.6

leg room

lot of delays, various reasons

SLC
JFK
Excellent 8.0

It’s great for time trip

It’s doesn’t Show up of seats on the airplane

LGB
FLL
Excellent 8.0

Very spacious seats

One the flight attendant wasn’t too nice when addressing to some Haitian people.

LIR
JFK
Mediocre 3.6

The second flight attendant approached was helpful.

Upon boarding an odor of vomit was obvious. An attendant announced that a previous passenger had been sick in the row and there was no time to adequately clean it. There was only one food option available for purchase. Neither the overhead reading light or entertainment system at my seat worked. The first attendant I approached told me she could find me a seat in the back of the plane. I declined as I reserved a seat in the front of the plane in order to deplane and go through customs swiftly. I was then offered a seat directly behind the row where the passenger had vomited. Eventually, a different attendant placed me in a seat nearer the front of the place where both the light and entertainment system worked.

Sat, May 26
ORD
DCA
1h 56m
Tue, May 29
DCA
ORD
2h 15m
Trip: 4 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 58 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
ORD
DCA
Excellent 8.8

Once I made it, they worked to get me on the plane from Chicago quickly.

I barely made it for my flight in Chicago and that was with running. They were already boarding the other plane when my plane from Hattiesburg landed. Earlier in the day I had to get them to change my flight from Chicago in Hattiesburg because it wasn't changed for me when the delay had my original flight leaving before I was to land in Chicago. I don't fault them for someone getting sick at the last minute or my inconvenience, but it was still inconvenient.

ORD
DCA
Mediocre 2.0

The flight was cancelled. I didn't receive a refund or free hotel accommodations. I've been on flights in Africa where free hotel accommodations were standard for a layover over 3 hours. A little embarrassing that an airline in America can't afford a hotel for people stranded in a city overnight.

ORD
DCA
Good 6.0

That I got a soda

Delayed at Ohare by an hour. Sitting on the Tarmac for a half hour in Reagan, waiting for a gate. This was our leg back to DC, after our leg to Chicago four days previously. On that trip I did a review and gave the whole trip a 1 out of 5 stars. That trip was the trip from hell, with delays, waiting on the Tarmac, deplaning, almost cancelled, more waiting on the Tarmac, wheels up in Reagan, wheels down in ORD, and then more Tarmac waiting for a gate. So I was already more than perturbed when this trip had similar outcomes.

ORD
DCA
Good 7.2

Friendly crew, comfortable space, good snacks.

ORD
DCA
Okay 4.3

Seats were really neither notably comfortable nor notably uncomfortable. I think they were slightly on the comfortable side.

Would be nice to have more modern aircraft amenities, like power outlets for device charging, and display screens with at least some complimentary entertainment, or at least flight path tracking. Boarding counter lady was obnoxiously strict about not letting our carry-on bags to be carry-on. She made us test them in the size device and said they were too big, even though they could easy be pushed into the space, and regardless of the fact that we just flew on an American Airlines flight with them as carry-on and were only on a layover with them! Regarding the previous AA agent who let them be carry-on, she said "shame on them." Complete opposite of the positive experience we had with her counterpart in Phoenix. ಠ_ಠ

Mon, Apr 30
ORD
IAD
17h 11m
Thu, May 3
IAD
ORD
8h 29m
Trip: 4 days
6.1GoodShow reviews
Overall 6.1 Good
Based on 21 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ORD
IAD
Excellent 10.0

This was the first time I have flown Frontier. Even with a checked bag fee ($30 each way), my total fare was still less than half of what it would have been for competitors the same week. The planes were clean, flights were on time, and the crew were extremely friendly and helpful!

There wasn't anything not to like! The experience was seriously better than I imagined it would be.

ORD
IAD
Excellent 8.0

Easy boarding easy check in

Nothing that bad, chairs are maybe a bit thin but not terribly uncomfortable

AUS
PHX
Good 6.0

Flight was delayed

ORD
IAD
Mediocre 2.0

wait times kept changing and got totally ridiculous. my uber cost me twice as much and i was delayed 4 hours. never flying with you ever again.

ORD
IAD
Mediocre 3.3

The price

Both there and back our flight was delayed over an hour. The seats were very uncomfortable and with little leg room. when you check in on line it seems like you you don't have any other option but to pay for your seats. Don't do it-- just have them pick your seats-- you will be with your travel mate most likely. If money is a concern and you don't mind being delayed, then it is worth it. Otherwise don't do it!

Wed, Apr 4
ORD
IAD
13h 08m
Thu, Apr 5
IAD
ORD
2h 09m
Trip: 2 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 69 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IAD
Good 6.6

Service

Total disaster due to some snow, excessive delays

ORD
IAD
Excellent 9.0

Had to pay for movies and snacks.

ORD
IAD
Excellent 10.0

temperature was right not blanket needed

they ignore me never offer me a drink and I was thirsty

ORD
IAD
Good 6.0

Had to check a bag I've carried on several other times.

ORD
IAD
Excellent 10.0

Had fun watching free movies on my device, although the connection didn't work for the first leg. The plane was new/upgraded, a ton of legroom on my second leg Airbus.

Tue, Apr 17
ORD
DCA
6h 49m
Tue, Apr 24
DCA
ORD
8h 58m
Trip: 8 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 8511 reviews
Overall
8.2
Boarding
8.3
Comfort
8.3
Crew
8.6
Entertainment
8.0
Food
7.8
BDL
FLL
Excellent 10.0

lots of room.

not one thing all good

FLL
PAP
Good 7.6

Great confort

Crew members need to be nicer

LAX
JFK
Excellent 8.0

Everything was smooth, great flight, great entertainment, but it took over an hour for our bags to arrive at our baggage claim.

JFK
SFO
Excellent 10.0

Yese

Everything was great

SLC
JFK
Excellent 8.0

It’s great for time trip

It’s doesn’t Show up of seats on the airplane

Tue, Mar 13
ORD
DCA
1h 50m
Tue, Mar 27
DCA
ORD
2h 22m
Trip: 15 days
Overall 0.0 Poor
Based on 0 reviews
Sat, May 19
ORD
DCA
1h 47m
Mon, May 21
DCA
ORD
2h 36m
Trip: 3 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 58 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
ORD
DCA
Excellent 8.8

Once I made it, they worked to get me on the plane from Chicago quickly.

I barely made it for my flight in Chicago and that was with running. They were already boarding the other plane when my plane from Hattiesburg landed. Earlier in the day I had to get them to change my flight from Chicago in Hattiesburg because it wasn't changed for me when the delay had my original flight leaving before I was to land in Chicago. I don't fault them for someone getting sick at the last minute or my inconvenience, but it was still inconvenient.

ORD
DCA
Excellent 9.3

Excellent for a short flight. Good entertainment and a smooth ride.

ORD
DCA
Excellent 8.0

Due to an earlier late flight, missed my connection, so this flight was just 2 hours later and not too inconvenient. I slept the whole way.

Was very hot before takeoff

ORD
DCA
Good 7.2

Friendly crew, comfortable space, good snacks.

ORD
DCA
Excellent 8.0

Should be allowed one checked bag per person at no charge.

Illinois to Washington Flight Information

Flights Arrive in Washington
Flights Depart from Illinois
Flight Price $174
Airlines United, JetBlue, Frontier, American Airlines
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.