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$63+ 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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — ORD
ene. 15 — ene. 221
jue. 1/15
jue. 1/22
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 diciembre 16, 2025.

This JetBlue deal was found by Cheapflights users on 12/15. 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.
jue. 12/254:31 pmBOS - ORD
Nonstop3h 15mJetBlue
lun. 12/297:41 pmORD - BOS
Nonstop2h 29mJetBlue
Deal found 12/15$132
This United Airlines deal was found by Cheapflights users on 12/14. 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.
sáb. 12/207:45 amBOS - ORD
Nonstop3h 04mUnited Airlines
lun. 12/229:12 pmORD - BOS
Nonstop2h 33mUnited Airlines
Deal found 12/14$137
This Expedia deal was found by Cheapflights users on 12/15. 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.
mar. 12/2312:08 pmBOS - ORD
1 stop23h 10mMultiple Airlines
mié. 1/77:45 amORD - BOS
Nonstop2h 25mMultiple Airlines
Deal found 12/15$156
This United Airlines deal was found by Cheapflights users on 12/13. 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.
mar. 12/166:00 amBOS - ORD
Nonstop3h 00mUnited Airlines
mar. 12/161:55 pmORD - BOS
Nonstop2h 20mUnited Airlines
Deal found 12/13$157
This United Airlines deal was found by Cheapflights users on 12/14. 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.
jue. 12/186:01 amBOS - ORD
Nonstop3h 04mUnited Airlines
sáb. 12/209:12 pmORD - BOS
Nonstop2h 33mUnited Airlines
Deal found 12/14$162
This United Airlines deal was found by Cheapflights users on 12/14. 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.
jue. 12/186:01 amBOS - ORD
Nonstop3h 04mUnited Airlines
jue. 12/186:11 pmORD - BOS
Nonstop2h 33mUnited Airlines
Deal found 12/14$182
This American Airlines deal was found by Cheapflights users on 12/14. 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.
mié. 12/176:00 amBOS - ORD
Nonstop3h 17mAmerican Airlines
vie. 12/197:25 amORD - BOS
Nonstop2h 33mAmerican Airlines
Deal found 12/14$187
This Priceline deal was found by Cheapflights users on 12/14. 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.
mié. 12/314:31 pmBOS - ORD
Nonstop3h 15mMultiple Airlines
mié. 1/74:49 pmORD - BOS
1 stop7h 30mMultiple Airlines
Deal found 12/14$190
This United Airlines deal was found by Cheapflights users on 12/14. 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.
jue. 12/186:01 amBOS - ORD
Nonstop3h 04mUnited Airlines
dom. 12/216:21 pmORD - BOS
1 stop4h 33mUnited Airlines
Deal found 12/14$192
This United Airlines deal was found by Cheapflights users on 12/14. 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.
lun. 12/297:45 amBOS - ORD
Nonstop3h 04mUnited Airlines
lun. 1/59:12 pmORD - BOS
Nonstop2h 33mUnited Airlines
Deal found 12/14$195
This United Airlines deal was found by Cheapflights users on 12/15. 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.
jue. 12/186:01 amBOS - ORD
Nonstop3h 04mUnited Airlines
dom. 1/49:12 pmORD - BOS
Nonstop2h 33mUnited Airlines
Deal found 12/15$196
This Southwest deal was found by Cheapflights users on 12/14. 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.
mié. 12/315:35 pmBOS - MDW
1 stop4h 30mSouthwest
mié. 1/72:00 pmMDW - BOS
Nonstop2h 10mSouthwest
Deal found 12/14$203

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 diciembre 16, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$120
(SmartFares)

One-way from

$63
(Trip.com)

Popular in

April

Cheapest in

September

Average price

$253

Good round-trip deal

$405 or less

Good one-way deal

$173 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. 9% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($2 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 diciembre 16, 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

mar. 1/20

12:45 pm-2:50 pm

Nonstop3h 05m

Chicago O'Hare Intl

jue. 1/22

7:30 am-10:52 am

Nonstop2h 22m

$132

BostonChicago

BOS - MDW

BOSMDW

Boston Logan Intl

sáb. 2/7

5:30 am-7:20 am

Nonstop2h 50m

Chicago Midway

sáb. 2/14

6:10 pm-9:25 pm

Nonstop2h 15m

$137

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

sáb. 2/21

7:00 am-9:10 am

Nonstop3h 10m

Chicago O'Hare Intl

sáb. 3/7

10:00 am-1:23 pm

Nonstop2h 23m

$137

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

lun. 2/23

7:00 am-9:10 am

Nonstop3h 10m

Chicago O'Hare Intl

jue. 3/5

10:00 am-1:23 pm

Nonstop2h 23m

$137

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

sáb. 3/7

7:00 am-9:09 am

Nonstop3h 09m

Chicago O'Hare Intl

lun. 3/9

10:00 am-1:23 pm

Nonstop2h 23m

$137

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

lun. 2/23

7:00 am-9:10 am

Nonstop3h 10m

Chicago O'Hare Intl

sáb. 3/7

10:00 am-1:23 pm

Nonstop2h 23m

$137

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

mié. 1/7

3:35 pm-5:43 pm

Nonstop3h 08m

Chicago O'Hare Intl

vie. 1/16

7:45 am-11:10 am

Nonstop2h 25m

$137

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

mié. 2/25

7:00 am-9:10 am

Nonstop3h 10m

Chicago O'Hare Intl

vie. 3/6

10:00 am-1:23 pm

Nonstop2h 23m

$137

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

mié. 3/11

7:00 am-9:09 am

Nonstop3h 09m

Chicago O'Hare Intl

dom. 3/15

6:22 pm-9:55 pm

Nonstop2h 33m

$137

BostonChicago

BOS - ORD

BOSORD

Boston Logan Intl

sáb. 1/31

3:35 pm-5:43 pm

Nonstop3h 08m

Chicago O'Hare Intl

mar. 2/3

7:45 am-11:10 am

Nonstop2h 25m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

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, February is the cheapest month in which you can book a flight from New Hampshire to Illinois (average of $109). Flying from New Hampshire to Illinois in December is currently the most expensive (average of $392). 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 diciembre 16, 2025.

It’s typically best to fly out from New Hampshire to Illinois in the evening. Doing so could potentially save you 24% 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 December 16, 2024.

Travelers seeking maximum savings on their New Hampshire to Illinois flight should consider departing on Monday mornings 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 diciembre 16, 2025.
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
7.9
Good
4,250 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

7.9

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
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

7.9

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
11,049 reviews
Southwest
7.9
Good
4,250 reviews

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

7.9

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 $137, United Airlines 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 $109). Flying from New Hampshire to Illinois in December is currently the most expensive (average of $392). 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 diciembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$196Average$434FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$196Average$440FlexibilityNo cancel feeOn-time71%

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