HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$61+ Cheap flights from New Hampshire to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — ORD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from New Hampshire to Illinois with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from New Hampshire to Illinois

Cheapest flights from New Hampshire to Illinois
Explore the most affordable flight options available from New Hampshire to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Orbitz deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:27 am
BOS
-
ORD
1 stop14h 44m
Multiple Airlines
Wed 3/410:00 am
ORD
-
BOS
Nonstop2h 20m
Multiple Airlines
Deal found 1/26$132
This Super.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/53:35 pm
BOS
-
ORD
Nonstop3h 08m
JetBlue
Mon 2/97:40 am
ORD
-
BOS
Nonstop2h 25m
JetBlue
Deal found 1/29$133
This Cheapflightsfares deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/313:35 pm
BOS
-
ORD
Nonstop3h 08m
JetBlue
Wed 2/47:40 am
ORD
-
BOS
Nonstop2h 25m
JetBlue
Deal found 1/28$134
This Southwest deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/305:30 am
BOS
-
MDW
Nonstop2h 50m
Southwest
Tue 2/32:00 pm
MDW
-
BOS
Nonstop2h 10m
Southwest
Deal found 1/27$135
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/304:16 pm
BOS
-
ORD
Nonstop3h 00m
United Airlines
Sun 2/17:30 am
ORD
-
BOS
Nonstop2h 22m
United Airlines
Deal found 1/27$135
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/257:15 am
BOS
-
ORD
Nonstop3h 13m
Delta
Sat 2/287:05 am
ORD
-
BOS
Nonstop2h 32m
Delta
Deal found 1/27$136
This American Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/277:16 pm
BOS
-
ORD
Nonstop3h 14m
American Airlines
Mon 3/28:45 pm
ORD
-
BOS
Nonstop2h 14m
American Airlines
Deal found 1/29$137
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/257:45 pm
BOS
-
ORD
Nonstop3h 03m
Delta
Mon 3/25:37 pm
ORD
-
BOS
1 stop4h 49m
Delta
Deal found 1/28$138
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/289:00 am
BOS
-
MDW
1 stop4h 46m
Delta
Mon 3/26:20 pm
MDW
-
BOS
1 stop4h 06m
Delta
Deal found 1/28$139
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/284:58 pm
BOS
-
ORD
1 stop4h 46m
Delta
Tue 3/37:10 am
ORD
-
BOS
1 stop5h 09m
Delta
Deal found 1/28$139
This lastminute.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/245:38 pm
BOS
-
ORD
1 stop6h 21m
JetBlue
Wed 2/2510:00 am
ORD
-
BOS
Nonstop2h 20m
JetBlue
Deal found 1/27$140
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:00 am
BOS
-
ORD
1 stop17h 39m
Frontier
Mon 3/24:42 pm
ORD
-
BOS
1 stop7h 31m
Frontier
Deal found 1/26$141

Find flight deals from New Hampshire to Illinois

Keep the following information in mind while searching for New Hampshire to Illinois flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$132
(Orbitz)

One-way from

$61
(Trip.com)

Popular in

April

Cheapest in

September

Average price

$206

Good round-trip deal

$413 or less

Good one-way deal

$192 or less
Provider with most accurate pricing for Boston Logan Intl-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Chicago (CHI) flights.
Search Deals
From New Hampshire to Illinois
Search Deals
One-way flight from New Hampshire to Illinois
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from New Hampshire to Illinois.
Search Deals
Price to beat on a one-way flight from New Hampshire to Illinois.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from New Hampshire 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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from New Hampshire to Illinois that are best for you.

Fly from

New Hampshire

Fly to

Illinois

Route

Depart

Return

Price

BostonChicago

BOS - MDW

BOSMDW

Boston Logan Intl

Sat 2/28

5:45 pm-7:35 pm

Nonstop2h 50m

Chicago Midway

Mon 3/2

6:35 pm-9:50 pm

Nonstop2h 15m

$135

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Wed 6/3

6:35 pm-8:35 pm

Nonstop3h 00m

Chicago O'Hare Intl

Thu 6/4

9:26 pm-12:59 am

Nonstop2h 33m

$135

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Wed 4/8

7:10 am-9:10 am

Nonstop3h 00m

Chicago O'Hare Intl

Wed 4/15

6:00 am-9:15 am

Nonstop2h 15m

$135

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Wed 6/3

7:00 am-8:58 am

Nonstop2h 58m

Chicago O'Hare Intl

Sat 6/6

7:00 am-10:28 am

Nonstop2h 28m

$135

BostonChicago

BOS - MDW

BOSMDW

Boston Logan Intl

Wed 2/25

5:30 am-7:20 am

Nonstop2h 50m

Chicago Midway

Wed 3/4

5:35 pm-8:50 pm

Nonstop2h 15m

$135

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sat 5/30

7:00 am-8:58 am

Nonstop2h 58m

Chicago O'Hare Intl

Sat 6/6

7:00 am-10:28 am

Nonstop2h 28m

$135

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Tue 4/14

6:52 am-8:51 am

Nonstop2h 59m

Chicago O'Hare Intl

Wed 4/22

6:00 am-9:15 am

Nonstop2h 15m

$135

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Tue 4/7

4:25 pm-6:31 pm

Nonstop3h 06m

Chicago O'Hare Intl

Fri 4/10

7:35 pm-11:02 pm

Nonstop2h 27m

$135

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sat 5/2

8:55 am-11:00 am

Nonstop3h 05m

Chicago O'Hare Intl

Sat 5/9

7:00 am-10:28 am

Nonstop2h 28m

$135

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Tue 3/31

4:25 pm-6:31 pm

Nonstop3h 06m

Chicago O'Hare Intl

Wed 4/8

10:40 am-2:04 pm

Nonstop2h 24m

$135

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from New Hampshire to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from New Hampshire with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from New Hampshire to Illinois

What is the cheapest month to book a flight from New Hampshire to Illinois?

Currently, February is the cheapest month in which you can book a flight from New Hampshire to Illinois (average of $123). Flying from New Hampshire to Illinois in December is currently the most expensive (average of $398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from NH to IL?

Find hourly flight availability from New Hampshire to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 29, 2026.

It’s typically best to fly out from New Hampshire to Illinois in the afternoon. Doing so could potentially save you 14% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from New Hampshire to Illinois?

Use this chart to determine the cheapest time to fly round-trip from New Hampshire to Illinois. Price data was last updated on January 24, 2026.

Travelers seeking maximum savings on their New Hampshire to Illinois flight should consider departing on Friday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated January 29, 2026.
Peruse reviews from past customers who have flown with Southwest and American Airlines from New Hampshire to Illinois to help guide your decision. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,267 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,205 reviews
Southwest
8.0
Very good
4,267 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from New Hampshire to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from New Hampshire to Illinois?

    For as low as $135, Southwest can have you in Illinois from New Hampshire in 2h 50m. The distance between New Hampshire and Illinois is about 857 mi. Generally, flights for this route are nonstop.

  • Can I find deals for flights from New Hampshire to Illinois that include hotel bookings?

    Yes. In addition to deals on New Hampshire to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from New Hampshire to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from New Hampshire to Illinois.

  • Can I find deals for business class flights from New Hampshire to Illinois?

    Yes. Cheapflights offers flight deals from New Hampshire to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from New Hampshire to Illinois?

    Currently, February is the cheapest month in which you can book a flight from New Hampshire to Illinois (average of $123). Flying from New Hampshire to Illinois in December is currently the most expensive (average of $398). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for New Hampshire to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Fort Lauderdale flights
John F Kennedy Intl to Miami flights
Newark to Miami flights
Newark to Fort Lauderdale flights
LaGuardia to Miami flights
LaGuardia to Fort Lauderdale flights
San Francisco to John F Kennedy Intl flights
John F Kennedy Intl to West Palm Beach flights
Newark to West Palm Beach flights
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Orlando flights
John F Kennedy Intl to Las Vegas flights
Los Angeles to John F Kennedy Intl flights
San Francisco to Newark flights
O'Hare Intl to Sky Harbor Intl flights
Seattle to Los Angeles flights
Newark to Las Vegas flights
Seattle to Las Vegas flights
O'Hare Intl to Las Vegas flights
Newark to Orlando flights
John F Kennedy Intl to Tampa flights
Minneapolis to Sky Harbor Intl flights
Los Angeles to Seattle flights
O'Hare Intl to Dallas/Fort Worth flights
LaGuardia to Orlando flights
San Francisco to LaGuardia flights
Newark to Tampa flights
John F Kennedy Intl to San Francisco flights
LaGuardia to Tampa flights
Dallas/Fort Worth to John F Kennedy Intl flights
Boston to Fort Lauderdale flights
Newark to Los Angeles flights
San Francisco to Las Vegas flights
John F Kennedy Intl to Sky Harbor Intl flights
Dulles Intl to Miami flights
Boston to Miami flights
Reagan-National to Miami flights
Los Angeles to Honolulu flights
Dallas/Fort Worth to LaGuardia flights
Boston to Tampa flights
LaGuardia to West Palm Beach flights
Detroit to Orlando flights
Seattle to Sky Harbor Intl flights
Newark to Sky Harbor Intl flights
John F Kennedy Intl to Dallas/Fort Worth flights
John F Kennedy Intl to New Orleans flights
Dallas/Fort Worth to Las Vegas flights
Minneapolis to Orlando flights
Newark to New Orleans flights
O'Hare Intl to Fort Lauderdale flights

Top 2 airlines flying from New Hampshire to Illinois

Discover the top 2 airlines that operate flights from New Hampshire to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$196Average$425FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$196Average$439FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.