United's Economy Plus offers extra legroom; ideal for comfort on short flights.
United's MileagePlus allows pooling miles, great for family travel.

Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $118 (JetBlue) |
One-way from | $59 (Delta) |
Popular in | February |
Cheapest in | January |
Average price | $252 |
Good round-trip deal | $158 or less |
Good one-way deal | $99 or less |
Fly from
Fly to
Route
Depart
Return
Price
ChicagoBoston
ORD - BOS
ORDBOS
Chicago O'Hare Intl
Tue 1/13
7:45 am-11:10 am
Nonstop2h 25m
Boston Logan Intl
Tue 1/20
3:35 pm-5:43 pm
Nonstop3h 08m
ChicagoBoston
ORD - BOS
ORDBOS
Chicago O'Hare Intl
Sun 1/11
7:30 am-10:52 am
Nonstop2h 22m
Boston Logan Intl
Sat 1/17
4:49 pm-6:49 pm
Nonstop3h 00m
ChicagoBoston
ORD - BOS
ORDBOS
Chicago O'Hare Intl
Tue 1/20
10:40 am-2:13 pm
Nonstop2h 33m
Boston Logan Intl
Sun 1/25
7:30 am-9:41 am
Nonstop3h 11m
ChicagoBoston
ORD - BOS
ORDBOS
Chicago O'Hare Intl
Sat 12/13
11:25 am-2:49 pm
Nonstop2h 24m
Boston Logan Intl
Mon 1/12
3:35 pm-5:43 pm
Nonstop3h 08m
ChicagoBoston
ORD - BOS
ORDBOS
Chicago O'Hare Intl
Wed 1/14
11:00 am-2:28 pm
Nonstop2h 28m
Boston Logan Intl
Wed 1/21
8:25 pm-10:29 pm
Nonstop3h 04m
ChicagoBoston
ORD - BOS
ORDBOS
Chicago O'Hare Intl
Fri 1/9
7:45 am-11:10 am
Nonstop2h 25m
Boston Logan Intl
Mon 1/12
3:35 pm-5:43 pm
Nonstop3h 08m
ChicagoBoston
ORD - BOS
ORDBOS
Chicago O'Hare Intl
Fri 1/9
11:00 am-2:28 pm
Nonstop2h 28m
Boston Logan Intl
Tue 1/13
1:50 pm-3:57 pm
Nonstop3h 07m
ChicagoBoston
ORD - BOS
ORDBOS
Chicago O'Hare Intl
Thu 1/8
11:00 am-2:28 pm
Nonstop2h 28m
Boston Logan Intl
Sat 1/10
7:30 am-9:41 am
Nonstop3h 11m
ChicagoBoston
ORD - BOS
ORDBOS
Chicago O'Hare Intl
Fri 1/9
7:45 am-11:10 am
Nonstop2h 25m
Boston Logan Intl
Thu 1/15
3:35 pm-5:43 pm
Nonstop3h 08m
ChicagoBoston
ORD - BOS
ORDBOS
Chicago O'Hare Intl
Thu 12/25
8:50 am-2:20 pm
1 stop4h 30m
Boston Logan Intl
Thu 1/1
6:01 am-8:05 am
Nonstop3h 04m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago O'Hare Intl Airport to Boston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Boston (average of $91). Flying from Chicago O'Hare Intl Airport to Boston in February is currently the most expensive (average of $138). 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.
A simple way to save on the total cost of your ticket is to fly from Chicago O'Hare Intl Airport to Boston in the evening. If you’re flexible enough to do this you can expect to save up to 27% on your trip compared to booking a flight at noon.
Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Boston flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
About 21% of weekly flights between Chicago and Boston have experienced delays in the past year, with the average delay time being 152 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Spirit Airlines have had the lowest number of delays on this route, with just 13% of flights being delayed.
Comfort
Overall
Boarding
Crew
Food
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Comfort
Overall
Boarding
Crew
Food
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Comfort
Overall
Boarding
Crew
Food
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Comfort
Overall
Boarding
Crew
Food
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Comfort
Overall
Boarding
Crew
Food
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
Comfort
Overall
Boarding
Crew
Food
Entertainment
Reviews
Jim,Nov 2025
AVL - ATL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$79 | Average$176 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$83 | Average$166 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$103 | Average$225 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$104 | Average$115 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$117 | Average$232 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$117 | Average$262 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$144 | Average$206 | FlexibilityNo cancel fee | On-time63% |