MCTS Bus to MKE Airport: Routes, Fares & Tips 2026

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The MCTS bus to MKE airport is a low-cost public transit option operated by Milwaukee County Transit System that connects downtown Milwaukee, the North Shore, and several South Side neighborhoods directly to Milwaukee Mitchell International Airport. Two routes serve the airport: the GreenLine and Route 80. A single adult fare costs $2.25 (based on published MCTS rates — verify current fares at ridemcts.com/airport), making it the cheapest ground transportation option to MKE by a wide margin.

• Two routes serve MKE: the GreenLine (Bayshore to airport) and Route 80 (downtown / MATC to airport).
• Adult single fare is around $2.25 — compared to $11–$28/day for on-airport parking.
• Bus stop at MKE: buses drop off and pick up at the Baggage Claim level; verify the exact door with MCTS before travel.
• GreenLine runs frequently during peak hours; Route 80 connects the South Side and MATC campuses.
• Pay with the Umo Mobility app, a WisGo card, or exact cash — no change is given on board.
• Not ideal for red-eye flights: overnight service is limited — check schedules if your flight departs before 5 AM or arrives after midnight.

Not planning to ride the bus? Compare MKE off-airport parking lots from $5.50/day on Triply — four lots near the airport with shuttle service included.

What Is the MCTS Bus to MKE Airport and Which Routes Serve It?

The MCTS bus to MKE airport is public bus service run by Milwaukee County Transit System, connecting the metro area to Milwaukee Mitchell International Airport via two scheduled routes. Both routes are ADA-accessible and run seven days a week.

GreenLine (Route G)

The GreenLine is MCTS's high-frequency limited-stop route. It runs from Bayshore Town Center on the North Shore through downtown Milwaukee, then south along Howell Avenue to the airport. Major stops include Bayshore, downtown Milwaukee (Milwaukee Intermodal Station area), Bay View, and Milwaukee Mitchell International Airport. The airport is the southern terminal of the GreenLine. Based on MCTS published schedules, the GreenLine runs roughly every 15–30 minutes during peak daytime hours — verify the current timetable at ridemcts.com/airport before your trip.

Route 80

Route 80 connects the downtown MATC campus, runs south through several South Side Milwaukee neighborhoods, and continues to the airport and then to the MATC South Campus. If you live in Greenfield, South Milwaukee, Oak Creek, or near the Layton Avenue corridor, Route 80 may be a more direct option than the GreenLine. Service frequency is typically every 30–60 minutes depending on the time of day — confirm current headways with MCTS directly.

Which Milwaukee neighborhoods does each route cover?

• GreenLine: Bayshore / Whitefish Bay area, East Side, Downtown Milwaukee, Walker's Point, Bay View, St. Francis, and the airport corridor along Howell Avenue (WIS 38).
• Route 80: Downtown Milwaukee, MATC-Downtown campus, South Side neighborhoods, Greenfield, and MATC-South campus near Oak Creek.
• Not on a direct route? Both lines connect at the Milwaukee Intermodal Station downtown, where you can transfer from other MCTS routes.

How Much Does It Cost to Take the MCTS Bus to MKE Airport?

A single adult MCTS fare is approximately $2.25 per ride, based on published MCTS rates as of 2026 — always verify the current fare at ridemcts.com before travel. Reduced fares are available for qualifying riders.

Fares verified based on published MCTS rate schedules. Confirm current fares at ridemcts.com/airport before travel (verified October 2026).

Is the MCTS Bus to MKE Cheaper Than Parking or an Uber?

For most travelers, the bus is the cheapest option — but it only makes sense if the timing and luggage load work for your trip. Here's how the main options compare for a 5-day trip:

The bus wins on pure cost — a round trip on the MCTS bus to MKE airport costs roughly $4.50, compared to $27.50 or more for the cheapest off-airport parking option. However, the bus doesn't help if you have multiple large bags, young children, or an early-morning flight that predates bus service. For those situations, off-airport lots like the Royle Hotel at $5.50/day offer the next-best value — and your car is there when you land.

For a full breakdown of MKE parking costs and how they stack up, see our MKE parking rates guide for 2026.

How Long Does the MCTS Bus Take to Reach MKE Airport?

Travel time depends on where you board. From downtown Milwaukee, expect roughly 30–45 minutes on the GreenLine to reach Milwaukee Mitchell International Airport. The route runs south along Howell Avenue, which is a direct corridor to the terminal. From Bayshore Town Center at the north end of the GreenLine, add another 20–30 minutes, putting total travel time at around 50–75 minutes.

Route 80 riders coming from downtown or the MATC-Downtown campus can expect similar times — roughly 30–45 minutes to the airport depending on traffic and time of day. Neither route has a dedicated bus lane, so afternoon rush hour (3–6 PM) can add 10–20 minutes to your journey. Build in extra time and always give yourself at least 2 hours before departure when using transit. For guidance on how early to arrive at the terminal, the MKE airport terminal guide covers security wait times and recommended arrival windows.

How Do You Board the MCTS Bus at Milwaukee Mitchell International Airport? (Step-by-Step)

First-time riders often aren't sure where to catch the bus or how the payment process works. Here's a straightforward walkthrough.

Departing from MKE (going to the airport)

1. Find your nearest stop. Use the MCTS app or Google Maps to locate your closest GreenLine or Route 80 stop. Search "MCTS GreenLine" or "MCTS Route 80" for real-time arrivals.
2. Check the schedule. Confirm departure times at ridemcts.com/airport. Allow extra buffer — missing a bus close to your flight time is stressful.
3. Pay before or when you board. Tap with your WisGo card, pay through the Umo Mobility app, or have exact cash ready. The driver does not give change.
4. Board and stow your luggage. Overhead racks hold smaller bags. Large rolling suitcases can be stored in the aisle or front area. Be courteous — the bus serves regular commuters too.
5. Exit at the MKE airport stop. The bus stops at the Baggage Claim level of Milwaukee Mitchell International Airport. Follow signs inside for your check-in concourse (Concourse C or Concourse D).

Arriving at MKE (returning from the airport)

1. Collect your bags at Baggage Claim. The bus stop is on the Baggage Claim roadway — no need to leave the ground floor.
2. Look for the MCTS stop signs outside Baggage Claim. According to MCTS, intercity coaches including Coach USA, Lamers, Badger Coaches, and FlixBus also depart from Baggage Claim Exit 2 — so check you're at the right stop for your route.
3. Check the next departure time. Late arrivals should check whether the last bus has run for the night before relying on transit home.
4. Pay on board using your WisGo card, Umo app, or exact cash.

GreenLine vs Route 80 to MKE: Which Bus Should You Take?

Both routes reach Milwaukee Mitchell International Airport, but they serve different parts of the city. Use this guide to pick the right one.

• Take the GreenLine if: you're coming from Bayshore, the East Side, downtown Milwaukee, Bay View, or St. Francis. It's a higher-frequency, limited-stop route that runs the full length of Howell Avenue (WIS 38) — the main arterial road serving MKE's off-airport parking corridor.
• Take Route 80 if: you're near downtown MATC, Greenfield, or anywhere along the South 27th Street corridor toward Oak Creek and South Milwaukee. Route 80 also connects the two MATC campuses, so it's popular with students.
• Transferring downtown: If neither route has a stop near you, head to the Milwaukee Intermodal Station and transfer. Most MCTS routes pass through or near downtown.
• Frequency matters: The GreenLine generally runs more often. If you're on a tight schedule, GreenLine is the safer bet.

What Are the Current Service Alerts and Construction Detours Affecting MCTS to MKE?

As of October 2026, Concourse E at Milwaukee Mitchell International Airport is undergoing a major redevelopment into a new international concourse. Construction began around September 2025 and is expected to run through 2027 (verify current status at mitchellairport.com). No parking facility closures have been identified as of this date, but terminal access points can shift during active construction phases.

On the transit side, MCTS periodically issues detours that affect GreenLine and Route 80 routing — especially on Howell Avenue, which is the primary corridor both routes use to reach the airport. Always check the MCTS service alerts page or the Umo Mobility app for current detours before your trip. Detours can add 5–15 minutes to your journey and shift stop locations. Do not assume the stop is in the same place it was on a previous trip if there's active road or construction work nearby.

How Do You Pay for the MCTS Bus? (Umo App, WisGo Card, and Cash)

MCTS offers three ways to pay your fare. Each has pros and cons for airport travelers.

Umo Mobility App

The Umo Mobility app is MCTS's preferred payment method. Download it on iOS or Android, load funds, and tap to pay at the farebox. You can also set up auto-reload so you're never caught short. The app shows real-time bus arrivals, which is especially useful when you're running close to your departure time.

WisGo Card

The WisGo card is a reloadable transit card accepted on all MCTS routes. You can purchase one at select retailers around Milwaukee — check the MCTS website for current locations. Tapping a WisGo card is faster than fumbling with cash at the farebox, which matters when you're hauling luggage onto a crowded bus.

Exact Cash

Cash is accepted, but the fareboxes do not give change. Carry exact fare — approximately $2.25 for an adult single ride. Overpaying with a $5 bill means you lose the difference. For return trips, make sure you have coins or small bills ready after landing.

Transfer Tips

• Transfers are available within a set time window — confirm current transfer policy with MCTS if you need to switch routes downtown.
• The Umo app handles transfers automatically when you tap on the connecting route.
• WisGo card transfers require you to tap on the second bus within the valid window.

Tips for Riding the MCTS Bus to MKE With Luggage

Buses are designed for commuters, not airport luggage. A little planning makes the ride much smoother.

• Travel light. A carry-on and a small personal item are easy to manage. Full-size checked bags are awkward on a crowded bus.
• Avoid peak hours if possible. Buses between 7–9 AM and 4–6 PM fill up fast. If your flight allows flexibility, aim for midday travel.
• Board first or last. Boarding early lets you secure a spot near the front where large bags are easier to manage. Boarding last works if the bus is emptying — fewer people to navigate.
• Wheelchair access and ADA features: All MCTS GreenLine and Route 80 buses are ADA-accessible with low floors and ramp or kneeling features. Bike racks are on the front. If you need Transit Plus (MCTS's paratransit service), contact MCTS in advance — same-day bookings are not guaranteed.
• Allow extra time for security. After riding the bus, you still need to check in, drop bags, and clear security. Review TSA security screening guidelines to know what to expect at the checkpoint.

Should You Drive and Park Instead of Taking the MCTS Bus to MKE?

The bus is unbeatable on price for solo travelers or couples without large bags. But it's not always the right call. Here's a quick honest breakdown.

• Bus wins when: you're traveling alone, your luggage is light, your flight leaves mid-morning, and you live near a GreenLine or Route 80 stop.
• Parking wins when: you have a family, multiple bags, an early-morning or late-night flight, or you need the flexibility of your own car.
• Off-airport lots close the gap: The Royle Hotel on Howell Avenue charges just $5.50/day through Triply — for a 5-day trip, that's only $27.50 total. You keep your car, your schedule, and your luggage space.
• Winter travel: Bus travel in a Milwaukee winter with bags is genuinely difficult. If you're flying in January or February, the MKE airport parking in winter guide covers covered and heated lot options worth considering.
• TSA PreCheck users: If you have TSA PreCheck, security moves fast — meaning you don't need to leave hours early. That can make driving and parking more time-competitive with the bus than it looks.

Not sure which parking option fits your trip? Compare MKE parking lots from $5.50/day on Triply — filter by shuttle hours, amenities, and price to find the right match before you book.