Flights from United States to Chicago O'Hare

Trip type

Our cheapest offers for flights from United States a Chicago O'Hare

Here you can compare cheap flights from United States to Chicago O'Hare (ORD) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Chicago O'Hare. Prices and availability may change at any time.

  • Los Angeles (LAX)Chicago O'Hare (ORD)
    non-stop flights:
    33–51 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • United Airlines
    • American Airlines
    • Delta Air Lines
    • Frontier Airlines
    from $187
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines21–3021–3020–3021–3120–3120–3221–31
    American Airlines9–149–149–149–149–158–139–14
    Delta Air Lines4444444
    Frontier Airlines1111111
  • Boston (BOS)Chicago O'Hare (ORD)
    non-stop flights:
    22–41 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • United Airlines
    • American Airlines
    • Delta Air Lines
    • JetBlue Airways
    from $263
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines11–1711–1711–1711–1711–1611–1611–17
    American Airlines7–107–127–127–137–137–137–10
    Delta Air Lines4–94–94–94–94–73–74–7
    JetBlue Airways21–21–2221–22
  • New York (LGA)Chicago O'Hare (ORD)
    non-stop flights:
    33–97 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • United Airlines
    • Delta Air Lines
    • American Airlines
    • Spirit Airlines
    from $59
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines24–4924–4924–4824–4924–4919–3320–41
    Delta Air Lines9–299–319–279–269–264–207–27
    American Airlines9–129–159–159–159–169–159–12
    Spirit Airlines1–21–21–21–21–21–21–2
  • Miami (MIA)Chicago O'Hare (ORD)
    non-stop flights:
    12–39 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • American Airlines
    • United Airlines
    • Spirit Airlines
    • Qatar Airways
    from $227
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    American Airlines8–148–168–168–178–188–188–18
    United Airlines3–173–173–173–173–173–183–17
    Spirit Airlines2–31–21–22–32–31–32–3
    Qatar Airways0100000
  • Dallas (DFW)Chicago O'Hare (ORD)
    non-stop flights:
    24–36 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • American Airlines
    • United Airlines
    • Frontier Airlines
    • Spirit Airlines
    • Aer Lingus Irish Airlines
    • Atlas Air
    from $181
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    American Airlines14–2115–2115–2114–2116–2213–2014–21
    United Airlines8–109–109–108–108–108–108–10
    Frontier Airlines1–2111–21–211–2
    Spirit Airlines1001111
    Aer Lingus Irish Airlines1100011
    Atlas Air1000100
  • Charlotte (CLT)Chicago O'Hare (ORD)
    non-stop flights:
    12–25 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • American Airlines
    • United Airlines
    • Frontier Airlines
    from $227
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    American Airlines9–149–169–169–179–188–159–14
    United Airlines4–64–64–64–64–64–74–6
    Frontier Airlines1001101
  • San Francisco (SFO)Chicago O'Hare (ORD)
    non-stop flights:
    35–62 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • United Airlines
    • American Airlines
    • Alaska Airlines
    from $391
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines30–5329–5129–5230–5230–5330–4930–50
    American Airlines5–85–85–85–85–84–85–8
    Alaska Airlines1111111
  • New York (JFK)Chicago O'Hare (ORD)
    non-stop flights:
    10–24 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • Delta Air Lines
    • American Airlines
    • JetBlue Airways
    • LATAM Chile
    • Frontier Airlines
    • Cathay Pacific Airways
    from $53
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    Delta Air Lines4–114–114–104–104–104–94–11
    American Airlines4–64–64–64–64–64–64–6
    JetBlue Airways1–31–21–21–21–21–21–3
    LATAM Chile1111101
    Frontier Airlines1001101
    Cathay Pacific Airways1100011
    Qantas Airways0010001
    Turkish Airlines00001–200
    Atlas Air0010000
  • Washington DC (DCA)Chicago O'Hare (ORD)
    non-stop flights:
    22–44 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • United Airlines
    • American Airlines
    from $267
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines15–3215–3115–3215–3215–3214–3115–31
    American Airlines8–108–128–128–128–128–118–10
  • Newark (EWR)Chicago O'Hare (ORD)
    non-stop flights:
    30–45 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • United Airlines
    • American Airlines
    • Spirit Airlines
    from $95
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines25–3524–3524–3525–3525–3524–3325–35
    American Airlines5–65–75–85–75–75–75–6
    Spirit Airlines1–21–21–21–21–21–21–2
  • Orlando (MCO)Chicago O'Hare (ORD)
    non-stop flights:
    22–41 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • United Airlines
    • American Airlines
    • Spirit Airlines
    • Frontier Airlines
    • Alaska Airlines
    from $120
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines14–2514–2514–2514–2614–2615–2614–26
    American Airlines5–75–85–85–85–85–85–7
    Spirit Airlines2–42–42–42–42–42–42–4
    Frontier Airlines1–21–21–21–21–21–21–2
    Alaska Airlines1110101
  • Atlanta (ATL)Chicago O'Hare (ORD)
    non-stop flights:
    24–41 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • United Airlines
    • American Airlines
    • Delta Air Lines
    • Frontier Airlines
    • KLM
    • Turkish Airlines
    from $162
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines10–1710–1710–1810–1710–1710–1810–18
    American Airlines7–106–116–117–127–127–117–10
    Delta Air Lines7–97–97–97–97–97–87–9
    Frontier Airlines1–21–21–221–21–22
    KLM1101011
    Turkish Airlines0000100
  • Buffalo (BUF)Chicago O'Hare (ORD)
    non-stop flights:
    12–22 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • United Airlines
    • American Airlines
    from $304
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines8–138–138–138–138–138–138–13
    American Airlines5–85–95–95–95–94–95–8
  • Tampa (TPA)Chicago O'Hare (ORD)
    non-stop flights:
    12–35 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • United Airlines
    • American Airlines
    • Spirit Airlines
    • Frontier Airlines
    from $265
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines6–226–236–236–226–225–246–22
    American Airlines4–74–74–74–74–84–64–7
    Spirit Airlines2–32–32–32–32–32–32–3
    Frontier Airlines1–2111–21–21–21–2
  • Denver (DEN)Chicago O'Hare (ORD)
    non-stop flights:
    18–33 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • United Airlines
    • American Airlines
    • Frontier Airlines
    • Royal Jordanian
    from $153
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines12–2212–2212–2212–2212–2212–2312–22
    American Airlines6–96–96–96–96–105–86–9
    Frontier Airlines1001111
    Royal Jordanian0010010
  • Philadelphia (PHL)Chicago O'Hare (ORD)
    non-stop flights:
    17–33 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • United Airlines
    • American Airlines
    • Frontier Airlines
    from $382
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines9–199–189–189–199–1910–199–19
    American Airlines8–98–138–138–138–138–128–9
    Frontier Airlines1001101
  • St. Louis (STL)Chicago O'Hare (ORD)
    non-stop flights:
    24–42 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • United Airlines
    • American Airlines
    • GoJet Airlines
    from $184
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines13–2613–2613–2613–2613–2613–2613–26
    American Airlines9–139–139–139–149–149–129–13
    GoJet Airlines2222222
  • Detroit (DTW)Chicago O'Hare (ORD)
    non-stop flights:
    20–36 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • American Airlines
    • United Airlines
    • Delta Air Lines
    from $316
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    American Airlines8–108–128–128–128–128–128–10
    United Airlines7–117–117–117–117–127–117–11
    Delta Air Lines6–126–116–116–136–125–126–11
  • Baltimore (BWI)Chicago O'Hare (ORD)
    non-stop flights:
    5–19 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • United Airlines
    • American Airlines
    • Frontier Airlines
    • Spirit Airlines
    from $228
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines2–122–122–123–122–122–132–12
    American Airlines3–53–53–53–53–63–53–5
    Frontier Airlines1001101
    Spirit Airlines0001001
  • Cleveland (CLE)Chicago O'Hare (ORD)
    non-stop flights:
    19–38 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • United Airlines
    • American Airlines
    • Royal Jordanian
    from $183
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines10–1910–1910–1910–1910–1810–1810–19
    American Airlines10–169–1710–1810–1810–1710–1710–15
    Royal Jordanian0010001
Prices based on recent searches, subject to last-minute changes
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