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$70+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — ORD
May 1 — May 81
Fri 5/1
Fri 5/8
1 adult, Economy
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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 April 1, 2026.

This Super.com deal was found by Cheapflights users on 3/26. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:35 pm
BOS
-
ORD
Nonstop3h 04m
JetBlue
Wed 4/159:41 am
ORD
-
BOS
Nonstop2h 26m
JetBlue
Deal found 3/26$135
This SmartFares deal was found by Cheapflights users on 3/29. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:02 am
BOS
-
ORD
Nonstop2h 57m
JetBlue
Sun 5/36:00 am
ORD
-
BOS
Nonstop2h 15m
JetBlue
Deal found 3/29$137
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:52 pm
BOS
-
MDW
1 stop10h 22m
Frontier
Tue 5/512:27 pm
MDW
-
BOS
1 stop11h 57m
Frontier
Deal found 3/30$140
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:00 am
BOS
-
ORD
1 stop12h 00m
Frontier
Tue 5/51:59 pm
ORD
-
BOS
1 stop10h 25m
Frontier
Deal found 3/30$140
This Expedia deal was found by Cheapflights users on 3/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 am
BOS
-
ORD
1 stop12h 00m
Multiple Airlines
Wed 5/69:49 am
ORD
-
BOS
Nonstop2h 31m
Multiple Airlines
Deal found 3/26$143
This Super.com deal was found by Cheapflights users on 3/26. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:47 pm
BOS
-
ORD
Nonstop3h 06m
JetBlue
Thu 5/77:20 am
ORD
-
BOS
Nonstop2h 26m
JetBlue
Deal found 3/26$144
This Delta deal was found by Cheapflights users on 3/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/912:00 pm
BOS
-
ORD
Nonstop2h 54m
Delta
Wed 5/1310:30 am
ORD
-
BOS
Nonstop2h 27m
Delta
Deal found 3/26$145
This Delta deal was found by Cheapflights users on 3/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:30 am
BOS
-
ORD
1 stop5h 44m
Delta
Tue 5/57:59 pm
ORD
-
BOS
Nonstop2h 28m
Delta
Deal found 3/26$146
This JetBlue deal was found by Cheapflights users on 3/26. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/116:05 am
BOS
-
ORD
Nonstop3h 03m
JetBlue
Wed 4/159:41 am
ORD
-
BOS
Nonstop2h 26m
JetBlue
Deal found 3/26$147
This Priceline deal was found by Cheapflights users on 3/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:35 pm
BOS
-
ORD
Nonstop3h 04m
Multiple Airlines
Wed 4/296:08 pm
ORD
-
BOS
1 stop6h 23m
Multiple Airlines
Deal found 3/28$149
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/612:01 pm
BOS
-
MDW
1 stop11h 01m
Frontier
Fri 5/84:52 pm
MDW
-
BOS
1 stop15h 20m
Frontier
Deal found 3/30$151
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 5/86:47 pm
BOS
-
ORD
Nonstop3h 06m
JetBlue
Mon 5/117:20 am
ORD
-
BOS
Nonstop2h 26m
JetBlue
Deal found 3/31$152

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 April 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$137
(SmartFares)

One-way from

$70
(Orbitz)

Popular in

March

Cheapest in

September

Average price

$252

Good round-trip deal

$414 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. 5% potential increase in price ($12 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 April 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 April 1, 2026.
Use the filters below to find and compare flights from New Hampshire to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 5/7

5:45 am-9:37 am

1 stop4h 52m

Chicago O'Hare Intl

Mon 5/11

6:00 am-9:25 am

Nonstop2h 25m

$177

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Fri 5/8

7:30 am-9:30 am

Nonstop3h 00m

Chicago O'Hare Intl

Sun 5/10

7:30 am-11:01 am

Nonstop2h 31m

$177

BostonChicago

BOS - MDW

BOSMDW

Boston Logan Intl

Thu 5/14

10:40 am-12:20 pm

Nonstop2h 40m

Chicago Midway

Mon 5/18

7:40 am-10:55 am

Nonstop2h 15m

$181

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sat 5/2

12:45 pm-6:48 pm

1 stop7h 03m

Chicago O'Hare Intl

Sat 5/9

12:30 pm-7:15 pm

1 stop5h 45m

$181

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Mon 4/6

7:00 am-9:00 am

Nonstop3h 00m

Chicago O'Hare Intl

Mon 4/13

9:30 pm-12:59 am

Nonstop2h 29m

$181

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Sun 4/5

5:45 am-9:38 am

1 stop4h 53m

Chicago O'Hare Intl

Mon 4/13

9:30 pm-12:59 am

Nonstop2h 29m

$191

WorcesterChicago

ORH - ORD

ORHORD

Worcester

Sun 4/26

2:39 pm-11:34 pm

1 stop9h 55m

Chicago O'Hare Intl

Sun 5/3

5:00 am-2:14 pm

1 stop8h 14m

$192

WorcesterChicago

ORH - ORD

ORHORD

Worcester

Tue 4/14

2:39 pm-7:39 am

1 stop18h 00m

Chicago O'Hare Intl

Sat 4/18

5:45 pm-2:14 pm

1 stop19h 29m

$192

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 4/16

7:10 am-9:15 am

Nonstop3h 05m

Chicago O'Hare Intl

Wed 4/22

6:00 am-9:26 am

Nonstop2h 26m

$201

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

Thu 4/16

7:00 am-9:00 am

Nonstop3h 00m

Chicago O'Hare Intl

Sat 4/18

9:30 pm-12:59 am

Nonstop2h 29m

$204

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 60 resultsSorted by cheapest first
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2
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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, August is the cheapest month in which you can book a flight from New Hampshire to Illinois (average of $126). Flying from New Hampshire to Illinois in February is currently the most expensive (average of $400). 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, 2026.

It’s typically best to fly out from New Hampshire to Illinois in the afternoon. Doing so could potentially save you 20% 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 March 28, 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.

How much does it cost to fly round-trip from New Hampshire to Illinois?

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, 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
4,334 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,334 reviews
Southwest
8.0
Very good
4,334 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,545 reviews
Southwest
8.0
Very good
4,334 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 $181, United Airlines can have you in Illinois from New Hampshire in 2h 40m. The distance between New Hampshire and Illinois is about 857 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $126). Flying from New Hampshire to Illinois in February is currently the most expensive (average of $400). 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 April 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$196Average$419FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$196Average$432FlexibilityNo cancel feeOn-time71%

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