Illinois

$60+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — ORD
Jan 11 — Jan 181
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

Discover tips and strategies to find the most affordable flight options for your journey from New Hampshire (USNH) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 6, 2025.

Round-trip from

$140
(Booking.com)

One-way from

$60
(Mytrip)
From New Hampshire to Illinois
One-way flight from New Hampshire to Illinois

Find 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 6, 2025.

This Booking.com deal was found by Cheapflights users on 1/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/316:00 amBOS - STL
1 stop18h 31mFrontier
Sun 2/25:05 pmSTL - BOS
1 stop6h 22mFrontier
Deal found 1/5$140
This Southwest deal was found by Cheapflights users on 1/4. 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.
Sat 1/255:50 amBOS - MDW
Nonstop3h 00mSouthwest
Sun 1/268:40 amMDW - BOS
Nonstop2h 15mSouthwest
Deal found 1/4$157
This JetBlue deal was found by Cheapflights users on 1/4. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/43:52 pmBOS - ORD
Nonstop3h 03mJetBlue
Thu 2/67:00 amORD - BOS
Nonstop2h 15mJetBlue
Deal found 1/4$157
This CheapOair deal was found by Cheapflights users on 1/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/266:00 amBOS - MDW
1 stop16h 51mFrontier
Thu 3/274:45 pmMDW - BOS
1 stop6h 59mFrontier
Deal found 1/4$158
This Mytrip deal was found by Cheapflights users on 1/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/96:00 amBOS - ORD
1 stop28h 54mFrontier
Mon 1/134:53 pmORD - BOS
1 stop6h 37mFrontier
Deal found 1/3$158
This FlightHub deal was found by Cheapflights users on 1/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/711:31 amBOS - ORD
1 stop9h 42mMultiple Airlines
Mon 2/104:41 pmORD - BOS
1 stop6h 58mMultiple Airlines
Deal found 1/4$161
This Mytrip deal was found by Cheapflights users on 1/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/236:25 amBOS - ORD
1 stop10h 45mSpirit Airlines
Tue 1/283:56 pmORD - BOS
3 stops25h 07mSpirit Airlines
Deal found 1/4$162
This American Airlines deal was found by Cheapflights users on 1/3. 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 1/242:52 pmBOS - ORD
Nonstop3h 00mAmerican Airlines
Sun 1/268:05 amORD - BOS
Nonstop2h 21mAmerican Airlines
Deal found 1/3$168
This FlightHub deal was found by Cheapflights users on 1/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/26:00 amBOS - STL
1 stop9h 43mSpirit Airlines
Tue 2/43:48 pmSTL - BOS
1 stop6h 44mSpirit Airlines
Deal found 1/5$170
This Delta deal was found by Cheapflights users on 1/3. 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.
Thu 1/168:20 pmBOS - ORD
Nonstop3h 03mDelta
Tue 1/217:10 amORD - BOS
Nonstop2h 37mDelta
Deal found 1/3$212
This American Airlines deal was found by Cheapflights users on 1/5. 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.
Thu 1/232:32 pmORH - ORD
1 stop21h 15mAmerican Airlines
Sun 1/264:22 pmORD - ORH
1 stop20h 40mAmerican Airlines
Deal found 1/5$214
This United Airlines deal was found by Cheapflights users on 1/5. 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.
Thu 1/166:00 amBOS - ORD
Nonstop3h 03mUnited Airlines
Sat 1/182:00 pmORD - BOS
Nonstop2h 23mUnited Airlines
Deal found 1/5$218

Find flights from New Hampshire to Illinois within your budget

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 6, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Fri 1/31

6:00 am-11:31 pm

1 stop18h 31m

Lambert-St Louis

Sun 2/2

5:05 pm-12:27 am

1 stop6h 22m

$140

BostonChicago

BOS - MDW

BOSMDW

Boston Logan Intl

Thu 1/30

5:40 pm-7:30 pm

Nonstop2h 50m

Chicago Midway

Sun 2/2

8:40 am-11:55 am

Nonstop2h 15m

$157

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 1/30

6:10 am-8:14 am

Nonstop3h 04m

Chicago O'Hare Intl

Sat 2/1

7:00 am-10:15 am

Nonstop2h 15m

$157

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Tue 1/21

11:31 am-12:39 pm

3 stops26h 08m

Chicago O'Hare Intl

Thu 1/23

10:33 am-12:27 am

1 stop12h 54m

$158

BostonChicago

BOS - MDW

BOSMDW

Boston Logan Intl

Fri 1/31

6:00 am-5:53 pm

1 stop12h 53m

Chicago Midway

Mon 3/31

8:27 pm-10:45 am

1 stop13h 18m

$158

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sun 2/23

10:11 am-12:11 pm

1 stop27h 00m

Chicago O'Hare Intl

Wed 2/26

7:18 pm-12:44 am

1 stop28h 26m

$159

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sat 2/22

5:45 am-11:58 pm

2 stops19h 13m

Chicago O'Hare Intl

Tue 3/4

7:10 am-3:46 pm

1 stop7h 36m

$162

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Fri 1/24

7:15 am-9:25 am

Nonstop3h 10m

Chicago O'Hare Intl

Mon 1/27

6:25 pm-10:08 pm

Nonstop2h 43m

$167

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Sun 2/2

6:00 am-2:43 pm

1 stop9h 43m

Lambert-St Louis

Tue 2/4

3:48 pm-11:32 pm

1 stop6h 44m

$170

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 2/13

6:00 am-8:04 am

Nonstop3h 04m

Chicago O'Hare Intl

Sat 2/15

6:35 pm-9:59 pm

Nonstop2h 24m

$194

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/5

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.

Travel insights for flights from New Hampshire to Illinois

Get recent, data-driven insights about flights from New Hampshire to Illinois including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from New Hampshire to Illinois (average of $245). Flying from New Hampshire to Illinois in March is currently the most expensive (average of $318). 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 6, 2025.

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

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 6, 2025.
Read reviews from past customers who have flown JetBlue, Spirit Airlines and United Airlines from New Hampshire to Illinois. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
4,671 reviews

Boarding

8.2

Entertainment

7.7

Food

7.2

Crew

8.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.1
Very good
4,671 reviews
8.1
Very good
4,671 reviews

Boarding

8.2

Entertainment

7.7

Food

7.2

Crew

8.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.0
Very good
9,612 reviews
8.1
Very good
4,671 reviews

Boarding

8.2

Entertainment

7.7

Food

7.2

Crew

8.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.0
Very good
8,517 reviews
8.1
Very good
4,671 reviews

Boarding

8.2

Entertainment

7.7

Food

7.2

Crew

8.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.5
Good
3,751 reviews
8.1
Very good
4,671 reviews

Boarding

8.2

Entertainment

7.7

Food

7.2

Crew

8.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.4
Good
3,212 reviews
8.1
Very good
4,671 reviews

Boarding

8.2

Entertainment

7.7

Food

7.2

Crew

8.7

Comfort

8.1

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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.
  • What are the cheapest airlines to fly from New Hampshire to Illinois one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $60. However, be on the lookout for offers from Spirit Airlines and Southwest, as they are both options that can get you from New Hampshire to Illinois for a low price.

  • 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, August is the cheapest month in which you can book a flight from New Hampshire to Illinois (average of $245). Flying from New Hampshire to Illinois in March is currently the most expensive (average of $318). 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.

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 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$177Average$442FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$334Average$437FlexibilityNo cancel feeOn-time63%
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.