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$77+ 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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — ORD
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
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 April 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$132
(JetBlue Airways)

One-way from

$77
(United Airlines)

Popular in

May

Cheapest in

September

Average price

$282

Good round-trip deal

$381 or less

Good one-way deal

$168 or less
Provider with most accurate pricing for Boston Logan Intl-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Chicago (CHI) flights.
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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. 11% potential increase in price ($31 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 April 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 April 1, 2025.

This JetBlue Airways deal was found by Cheapflights users on 3/31. 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 Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/285:15 pmBOS - ORD
Nonstop3h 12mJetBlue
Fri 5/26:30 pmORD - BOS
Nonstop2h 39mJetBlue
Deal found 3/31$132
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Sat 4/266:00 amBOS - ORD
Nonstop2h 57mUnited Airlines
Sat 5/312:50 pmORD - BOS
Nonstop2h 27mUnited Airlines
Deal found 3/31$134
This Cheapflightsfares deal was found by Cheapflights users on 3/31. 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.
Fri 4/119:39 pmBOS - ORD
1 stop11h 25mSpirit Airlines
Sun 4/138:45 amORD - BOS
1 stop10h 59mSpirit Airlines
Deal found 3/31$140
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Tue 4/82:18 pmORH - ORD
1 stop21h 47mAmerican Airlines
Thu 4/105:10 pmORD - ORH
1 stop19h 15mAmerican Airlines
Deal found 3/31$154
This Southwest deal was found by Cheapflights users on 3/31. 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 6/207:00 amBOS - MDW
Nonstop2h 40mSouthwest
Mon 6/236:55 pmMDW - BOS
Nonstop2h 15mSouthwest
Deal found 3/31$157
This Priceline deal was found by Cheapflights users on 3/31. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/292:12 pmBOS - ORD
1 stop11h 08mMultiple Airlines
Thu 5/14:15 pmORD - BOS
1 stop7h 50mMultiple Airlines
Deal found 3/31$164
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Sat 4/127:06 amBOS - ORD
1 stop4h 45mAmerican Airlines
Mon 4/146:35 pmORD - BOS
Nonstop2h 31mAmerican Airlines
Deal found 3/31$168
This Delta deal was found by Cheapflights users on 3/31. 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 4/267:25 pmBOS - ORD
Nonstop2h 57mDelta
Fri 5/27:20 pmORD - BOS
Nonstop2h 26mDelta
Deal found 3/31$177
This Southwest deal was found by Cheapflights users on 3/30. 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.
Sun 5/46:40 amBOS - ORD
1 stop8h 25mSouthwest
Wed 5/71:50 pmORD - BOS
1 stop6h 15mSouthwest
Deal found 3/30$196
This Frontier deal was found by Cheapflights users on 3/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/812:59 pmBOS - MDW
1 stop8h 34mFrontier
Sun 5/1110:55 amMDW - BOS
1 stop13h 10mFrontier
Deal found 3/31$198
This Frontier deal was found by Cheapflights users on 3/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/112:48 pmBOS - ORD
1 stop11h 23mFrontier
Mon 5/124:15 pmORD - BOS
1 stop7h 29mFrontier
Deal found 3/31$198
This Booking.com deal was found by Cheapflights users on 3/31. 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.
Mon 5/129:30 pmPWM - STL
1 stop27h 36mFrontier
Thu 5/155:45 pmSTL - PWM
1 stop25h 55mFrontier
Deal found 3/31$208

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 April 1, 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 - ORD

BOSORD

Boston Logan Intl

Mon 4/28

5:15 pm-7:27 pm

Nonstop3h 12m

Chicago O'Hare Intl

Fri 5/2

6:30 pm-10:09 pm

Nonstop2h 39m

$132

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sat 4/26

6:00 am-7:57 am

Nonstop2h 57m

Chicago O'Hare Intl

Sat 5/3

12:50 pm-4:17 pm

Nonstop2h 27m

$134

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Fri 4/11

9:39 pm-8:04 am

1 stop11h 25m

Chicago O'Hare Intl

Sun 4/13

8:45 am-8:44 pm

1 stop10h 59m

$140

WorcesterChicago

ORH - ORD

ORHORD

Worcester

Sat 4/19

1:38 pm-11:05 am

1 stop22h 27m

Chicago O'Hare Intl

Sat 4/26

5:10 pm-1:25 pm

1 stop19h 15m

$154

BostonChicago

BOS - MDW

BOSMDW

Boston Logan Intl

Fri 6/20

7:00 am-8:40 am

Nonstop2h 40m

Chicago Midway

Mon 6/23

6:55 pm-10:10 pm

Nonstop2h 15m

$157

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sat 4/12

8:00 am-10:07 am

Nonstop3h 07m

Chicago O'Hare Intl

Tue 4/15

8:05 am-11:30 am

Nonstop2h 25m

$158

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sun 5/4

6:40 am-2:05 pm

1 stop8h 25m

Chicago O'Hare Intl

Wed 5/7

1:50 pm-9:05 pm

1 stop6h 15m

$196

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Fri 5/9

3:30 pm-5:26 pm

Nonstop2h 56m

Chicago O'Hare Intl

Sun 5/11

7:00 am-10:25 am

Nonstop2h 25m

$197

BostonChicago

BOS - MDW

BOSMDW

Boston Logan Intl

Thu 5/8

12:59 pm-8:33 pm

1 stop8h 34m

Chicago Midway

Sun 5/11

10:55 am-1:05 am

1 stop13h 10m

$198

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 5/1

12:48 pm-11:11 pm

1 stop11h 23m

Chicago O'Hare Intl

Mon 5/12

4:15 pm-12:44 am

1 stop7h 29m

$198

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

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 $323). 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 April 1, 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 April 1, 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
9,818 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,277 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Avelo Airlines
7.5
Good
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,615 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 United Airlines, with whom users have recently found tickets for as low as $77. However, be on the lookout for offers from Spirit Airlines and JetBlue, 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 $323). 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

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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 April 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$178Average$436FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$328Average$437FlexibilityNo cancel feeOn-time63%
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