Cheap flights To Knox (RFD) from $32

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Cheap Flights to Knox from $32 One Way, $63 Round Trip

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Tue, Jul 8 - Wed, Jul 9
ATL
Hartsfield-Jackson Atlanta Intl.
ORD
O'Hare Intl.
$63 Roundtrip, found 4 hours ago
$63
Roundtrip
found 4 hours ago
Select Spirit Airlines flight, departing Tue, Jul 8 from Hartsfield-Jackson Atlanta Intl. to O'Hare Intl., returning Wed, Jul 9, priced at $63 found 4 hours ago
Thu, Sep 25 - Sun, Sep 28
BWI
Baltimore Washington Intl. Thurgood Marshall
ORD
O'Hare Intl.
$100 Roundtrip, found 1 hour ago
$100
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Thu, Sep 25 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Sun, Sep 28, priced at $100 found 1 hour ago
Wed, Oct 8 - Tue, Oct 14
ATL
Hartsfield-Jackson Atlanta Intl.
MDW
Midway Intl.
$107 Roundtrip, found 4 hours ago
$107
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Wed, Oct 8 from Hartsfield-Jackson Atlanta Intl. to Midway Intl., returning Tue, Oct 14, priced at $107 found 4 hours ago
Wed, Jul 9 - Wed, Jul 16
BWI
Baltimore Washington Intl. Thurgood Marshall
MDW
Midway Intl.
$108 Roundtrip, found 2 days ago
$108
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Jul 9 from Baltimore Washington Intl. Thurgood Marshall to Midway Intl., returning Wed, Jul 16, priced at $108 found 2 days ago
Thu, Sep 4 - Sun, Sep 7
DFW
Dallas-Fort Worth Intl.
ORD
O'Hare Intl.
$120 Roundtrip, just found
$120
Roundtrip
just found
Select Spirit Airlines flight, departing Thu, Sep 4 from Dallas-Fort Worth Intl. to O'Hare Intl., returning Sun, Sep 7, priced at $120 just found
Mon, Sep 22 - Mon, Sep 22
DFW
Dallas-Fort Worth Intl.
MDW
Midway Intl.
$133 Roundtrip, found 1 day ago
$133
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Sep 22 from Dallas-Fort Worth Intl. to Midway Intl., returning Mon, Sep 22, priced at $133 found 1 day ago
Sat, Aug 30 - Tue, Sep 2
BWI
Baltimore Washington Intl. Thurgood Marshall
ORD
O'Hare Intl.
$139 Roundtrip, found 2 days ago
$139
Roundtrip
found 2 days ago
Select United flight, departing Sat, Aug 30 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Tue, Sep 2, priced at $139 found 2 days ago
Sat, Aug 16 - Mon, Aug 18
ATL
Hartsfield-Jackson Atlanta Intl.
MDW
Midway Intl.
$140 Roundtrip, found 1 day ago
$140
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Sat, Aug 16 from Hartsfield-Jackson Atlanta Intl. to Midway Intl., returning Mon, Aug 18, priced at $140 found 1 day ago
Mon, Aug 25 - Tue, Aug 26
BWI
Baltimore Washington Intl. Thurgood Marshall
ORD
O'Hare Intl.
$148 Roundtrip, found 19 hours ago
$148
Roundtrip
found 19 hours ago
Select American Airlines flight, departing Mon, Aug 25 from Baltimore Washington Intl. Thurgood Marshall to O'Hare Intl., returning Tue, Aug 26, priced at $148 found 19 hours ago
Thu, Aug 14 - Wed, Aug 20
DAL
Love Field
MDW
Midway Intl.
$157 Roundtrip, found 1 day ago
$157
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Thu, Aug 14 from Love Field to Midway Intl., returning Wed, Aug 20, priced at $157 found 1 day ago

Knox ORD Flight Information

Traveling To
Knox
Destination Airport IATA Code
RFD
Number of Airlines Serving
15
Airlines
Spirit Airlines, Frontier Airlines, Delta, Southwest Airlines, American Airlines, United
Flight Price
$63
Earliest Departing Flight
AA 4487 6:02AM EDT
Latest Departing Flight
IB 4852 Jun 21 9:15PM EDT

Book Your Flight & Hotel Together & Save

Knox economy flight packages

Price found within the past 48 hours. Click for updated prices.
The Allegro Royal Sonesta Hotel Chicago Loop
4.0-star property

The Allegro Royal Sonesta Hotel Chicago Loop

Jul 30 - Aug 4

5 night stay

Boston (BOS) to Chicago (ORD)

Southwest Airlines • Roundtrip • Coach
Save 100% on your flight
per person
found 1 day ago
Hotel Felix River North/Magnificent Mile
4.0-star property

Hotel Felix River North/Magnificent Mile

Jul 30 - Aug 4

5 night stay

Boston (BOS) to Chicago (ORD)

Southwest Airlines • Roundtrip • Coach
Save 100% on your flight
per person
found 1 day ago
Eurostars Magnificent Mile
4.0-star property

Eurostars Magnificent Mile

Jul 30 - Aug 4

5 night stay

Boston (BOS) to Chicago (ORD)

Southwest Airlines • Roundtrip • Coach
Save 100% on your flight
per person
found 1 day ago
Don't see what you're looking for?
See all available trips from Boston to Knox
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Knox premium economy flight packages

Price found within the past 48 hours. Click for updated prices.
Hotel Felix River North/Magnificent Mile
4.0-star property

Hotel Felix River North/Magnificent Mile

8.2/10 Very Good! (1,759 reviews)

Jul 17 - Jul 22

5 night stay

Boston (BOS) to Chicago (ORD)

Delta • Roundtrip • PremiumEconomy
Save 100% on your flight
per person
found 1 day ago
Great location for doing things downtown. Walkable to every where one wants to go, or a cheap Lyft ride.

Reviewed on May 1, 2025

Trump International Hotel & Tower Chicago
5.0-star property

Trump International Hotel & Tower Chicago

9.4/10 Exceptional! (1,609 reviews)

Jul 17 - Jul 22

5 night stay

Boston (BOS) to Chicago (ORD)

Delta • Roundtrip • PremiumEconomy
Save 100% on your flight
per person
found 1 day ago
Perfect stay. Great hotel. Only complaint is the death spot in the bedroom. Gross looking stain on the floor: other than that- perfect.

Reviewed on Jun 1, 2025

Swissotel - Chicago
4.5-star property

Swissotel - Chicago

8.8/10 Excellent! (2,217 reviews)

Jul 17 - Jul 22

5 night stay

Boston (BOS) to Chicago (ORD)

Delta • Roundtrip • PremiumEconomy
Save 100% on your flight
per person
found 1 day ago
Absolutely everybody and everything was "top"

Reviewed on May 27, 2025

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Knox

Finding cheap flights to Knox is easy when you have Orbitz at your fingertips. Not only does Orbitz offer great deals on Knox flights, but we also include some special extras to make booking a breeze. Just check out our:

Mobile Site and Apps

With Orbitz’s mobile site, m.orbitz.com, you can book your flights to Knox through your smartphone or tablet’s Web browser. Plus, our free downloadable apps for Android and iPhone mean it’s just a simple click to access your flight updates and alerts. You can even book exclusive mobile-only deals on hotels to go with your flights to Knox—even on the same day.

Pick and Choose or Book Full Vacation Packages

Don’t just be satisfied with great deals on Knox flights—go for the full package! With Orbitz, you can also find fantastic savings on the perfect hotel, car rental, cruise, and even activities, so you don’t waste your trip waiting in line but have the time to enjoy your trip. Pick and choose the add-ons you need, or book an entire vacation package for greater overall discounts.

Rewards That Are Miles Better

Booking directly with an airline earns you air miles or points, and you can get those same rewards with booking on Orbitz too. When you book qualifying flights to Knox with Orbitz, just add in your frequent flyer number during your online booking and your details will be sent to your program.

Great Deals Every Day

Add in our extra savings on packages, free nights, and other discounts, and you know you are in good hands.

Frequently asked questions

Which airlines fly to Knox?
Reserving a flight to Knox is easy — simply pick from 20 airlines that service South Bend Intl. Airport (SBN). When you’ve arranged your itinerary and packed your luggage, these top domestic carriers will happily welcome you on board:

  • United Airlines - 87 flights to Knox per month
  • American Airlines - 67 flights to Knox per month
  • Delta - 57 flights to Knox per month

How much is a flight to Knox?
Plenty of incredible deals were up for the taking this week, with round-trip flights to Knox fluctuating between $63 and $157. But it was passengers arriving in from Atlanta (ATL) who snapped up the biggest bargains. One-way fares to Knox started at a low $32.
How to book the cheapest flight to Knox?
Landing cheap flights to Knox is as easy as booking your ticket with Orbitz. But if you’d like to make sure you’re walking away with the best flight deals around, here are a few tips to keep your wallet happy:

  • Depending on your departure point, click on the ‘Nearby airports’ function (located under the departure and arrival options). Sometimes, alternative departure points offer more value for money.
  • Similarly, click on the ‘Show flexible dates’ option to view the prices for days around your selected departure. It’s possible to score cheaper flight deals if your itinerary is flexible.
  • You can also select the ‘Show options’ function to filter results for your preferred airline, seating class, nonstop flights and refundable flights. Under ‘Sort & Filter’ to the left, you can even pick the time of day you’d prefer to fly.
  • Book your fare as soon as you know your travel dates. While you can get lucky on occasion, airfares rarely fall in price as your departure date gets closer.
  • Consider combining your flights, hotels and car rentals into an Orbitz package deal to save cash.
  • Whenever possible, avoid flying in high seasons. Airfares significantly increase during school breaks, summer and around other vacation times like Easter and Thanksgiving.

What is the best time to book a flight to Knox?
Book in January, February or August for competitively priced tickets to Knox. Once you’ve located a bargain, snap it up — cheap flights will appear and vanish in the click of a mouse.
What day of the week is the cheapest to book a flight to Knox?
In general, Tuesdays, Wednesdays and Saturdays are the cheapest days to book a flight to Knox. If you want unbeatable airfares, search across those days and you just might pick up a great flight deal.
What is the cheapest day of the week to fly to Knox?
According to Orbitz data from 2020, Monday is generally the best day of the week for cheap flights to Knox. Tuesday also offers wallet-friendly fares, while Saturday has the highest ticket prices. Although leaving at the weekend may be easier to organize, you’ll have more cash in your pocket to play with if you take off earlier in the week.
What is the cheapest month to fly to Knox?
We won’t keep you guessing — based on Orbitz data, August is generally the most inexpensive month to fly. Perfect for those who need a weekend getaway or simply escape from it all before the weather changes. The costliest time to fly is the height of summer, with airfares peaking in June.
Which airlines allow free cancellation?
Orbitz makes it a cinch to find carriers that offer flexibility. Simply select “Filter by flexible change policies” when searching for your flights and bada bing, bada boom! You’ll see options that include free cancellation, no change fees and of course, the very best price.
What do I need for the flight to Knox?
Flying can be a joy with a bit of pre-planning! Make your journey a hassle-free one with the following handy hints:

  • Before you step on to the plane, you’ll need to present a valid form of government ID, such as your passport. You’ll also need your boarding pass. If you’re traveling with children, check with your airline about which documents they may need.
  • To keep you busy on the short hop to Knox, download your favorite songs or restock the audiobook library on your smartphone. Food can also be a welcome distraction while in the air, so take some snacks.
  • No matter the weather outside (or how long the flight), plane cabins can get a bit chilly. Bring a sweater on board to stop the goose bumps.

How do I get cheap first-class/business deals to Knox?
Smart travelers have a way of finding business or first-class flights to Knox without the steep price tag. Be like them with these helpful hints:

  • Be flexible. By being open to various travel dates, you’ll have a better chance of spotting a sale on your airfares.
  • Many budget carriers these days offer excellent business or premium-class seating without the hefty fees.
  • Bid for an upgrade in online auctions or upgrade your ticket with your frequent flyer points.

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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.