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$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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — ORD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap 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 June 12, 2025.

Round-trip from

$123
(Southwest)

One-way from

$60
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$220

Good round-trip deal

$359 or less

Good one-way deal

$193 or less
From New Hampshire to Illinois
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One-way flight from New Hampshire to Illinois
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Highest demand for flights based on searches. 9% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from New Hampshire to Illinois.
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Price to beat on a one-way flight from New Hampshire to Illinois.
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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 June 12, 2025.

This Southwest deal was found by Cheapflights users on 6/11. 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.
Thu 8/75:15 amBOS - MDW
Nonstop2h 30mSouthwest
Sun 8/1010:00 amMDW - BOS
Nonstop2h 25mSouthwest
Deal found 6/11$123
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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.
Wed 7/25:45 amBOS - ORD
1 stop13h 59mSpirit Airlines
Wed 7/165:05 amORD - BOS
1 stop13h 29mSpirit Airlines
Deal found 6/10$124
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 8/56:07 amBOS - ORD
Nonstop2h 58mUnited Airlines
Fri 8/87:49 pmORD - BOS
Nonstop2h 27mUnited Airlines
Deal found 6/10$125
This American Airlines deal was found by Cheapflights users on 6/12. 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 10/235:00 amBOS - ORD
Nonstop2h 58mAmerican Airlines
Mon 10/278:30 pmORD - BOS
Nonstop2h 44mAmerican Airlines
Deal found 6/12$126
This Southwest deal was found by Cheapflights users on 6/12. 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.
Tue 7/225:45 amBOS - ORD
1 stop7h 05mSouthwest
Fri 7/254:00 pmORD - BOS
1 stop7h 05mSouthwest
Deal found 6/12$142
This American Airlines deal was found by Cheapflights users on 6/10. 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 9/184:23 pmORH - ORD
1 stop7h 16mAmerican Airlines
Mon 9/229:37 pmORD - ORH
1 stop17h 22mAmerican Airlines
Deal found 6/10$154
This Delta deal was found by Cheapflights users on 6/10. 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 8/277:55 pmBOS - ORD
Nonstop2h 59mDelta
Tue 9/27:00 amORD - BOS
Nonstop2h 30mDelta
Deal found 6/10$158
This JetBlue deal was found by Cheapflights users on 6/11. 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.
Thu 7/106:00 amBOS - ORD
Nonstop2h 55mJetBlue
Mon 7/148:40 amORD - BOS
Nonstop2h 24mJetBlue
Deal found 6/11$176
This JetBlue deal was found by Cheapflights users on 6/9. 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 9/97:00 amMHT - ORD
1 stop6h 10mJetBlue
Wed 9/171:36 pmORD - MHT
1 stop8h 46mJetBlue
Deal found 6/9$185
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 9/1012:38 pmMHT - ORD
Nonstop2h 52mAmerican Airlines
Wed 9/176:49 pmORD - MHT
Nonstop2h 35mAmerican Airlines
Deal found 6/11$197
This Mytrip deal was found by Cheapflights users on 6/9. 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 8/711:31 amBOS - MDW
1 stop20h 42mAllegiant Air
Mon 8/112:46 pmMDW - BOS
1 stop17h 29mAllegiant Air
Deal found 6/9$201
This Mytrip deal was found by Cheapflights users on 6/11. 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.
Fri 8/111:42 amBOS - RFD
1 stop23h 31mMultiple Airlines
Sun 8/39:21 amRFD - BOS
1 stop5h 22mMultiple Airlines
Deal found 6/11$206

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 June 12, 2025.
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

Thu 8/7

5:15 am-6:45 am

Nonstop2h 30m

Chicago Midway

Sun 8/10

10:00 am-1:25 pm

Nonstop2h 25m

$123

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Wed 7/2

5:45 am-6:44 pm

1 stop13h 59m

Chicago O'Hare Intl

Wed 7/16

5:05 am-7:34 pm

1 stop13h 29m

$124

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Tue 8/5

6:07 am-8:05 am

Nonstop2h 58m

Chicago O'Hare Intl

Fri 8/8

7:49 pm-11:16 pm

Nonstop2h 27m

$125

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 10/23

5:00 am-6:58 am

Nonstop2h 58m

Chicago O'Hare Intl

Mon 10/27

8:30 pm-12:14 am

Nonstop2h 44m

$126

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Tue 7/8

6:00 am-7:55 am

Nonstop2h 55m

Chicago O'Hare Intl

Thu 7/10

4:27 pm-8:00 pm

Nonstop2h 33m

$137

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Tue 7/22

5:45 am-11:50 am

1 stop7h 05m

Chicago O'Hare Intl

Fri 7/25

4:00 pm-12:05 am

1 stop7h 05m

$142

WorcesterChicago

ORH - ORD

ORHORD

Worcester

Thu 9/18

4:23 pm-10:39 pm

1 stop7h 16m

Chicago O'Hare Intl

Mon 9/22

9:37 pm-3:59 pm

1 stop17h 22m

$154

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Wed 8/27

7:55 pm-9:54 pm

Nonstop2h 59m

Chicago O'Hare Intl

Tue 9/2

7:00 am-10:30 am

Nonstop2h 30m

$158

ManchesterChicago

MHT - ORD

MHTORD

Manchester

Tue 9/9

7:00 am-12:10 pm

1 stop6h 10m

Chicago O'Hare Intl

Wed 9/17

1:36 pm-11:22 pm

1 stop8h 46m

$185

ManchesterChicago

MHT - ORD

MHTORD

Manchester

Wed 9/10

12:38 pm-2:30 pm

Nonstop2h 52m

Chicago O'Hare Intl

Wed 9/17

6:49 pm-10:24 pm

Nonstop2h 35m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 60 results
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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, 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 $321). 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 June 12, 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.

Weekly flight availability from New Hampshire to Illinois

Explore weekly flight availability from New Hampshire to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from USNH to USIL are scheduled on a Monday (5 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

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 June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
JetBlue
7.3
Good
2,925 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 Spirit Airlines, with whom users have recently found tickets for as low as $60. However, be on the lookout for offers from Southwest and United Airlines, 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 $321). 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

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Alternative routes for New Hampshire to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$245Average$478FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$312Average$437FlexibilityNo cancel feeOn-time63%

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