The Saints may feel aggrieved they did not leave south Wales with all three points after Adam Lallana had an effort ruled out for handball after an error by Michel Vorm just before half-time.
Nathan Dyer went closest for the hosts as Maya Yoshida cleared his effort off the line but in truth neither side showed sufficient quality in the final third to craft a winner in what was, for large parts, a tepid game.
Not that Southampton will mind too much. Mauricio Pochettino's side are now eight points clear of the drop zone.
Pochettino's men grew into the game, with the industrious Jack Cork forcing Vorm into the game's first save with a hopeful effort from the edge of the box.
Vorm made an excellent stop to deny Jay Rodriguez after 25 minutes, getting down low to hold the volley after Rickie Lambert had teed up his colleague.
Vorm continued to be the busier goalkeeper and had to be at full stretch to deny Lambert his 15th goal of the season, the Dutchman tipping over a free-kick that was arrowing into the top corner.
But the keeper blotted his copybook seconds later, failing to hold a simple Rodriguez cross for Lallana to bundle in, only for the whistle to go for handball against the Saints midfielder.
Swansea went closer when Lallana let the ball run loose inside his own area and Michu pounced to set up Dyer but Yoshida got himself in the right place to clear off the line. Artur Boruc then made two excellent saves as he denied De Guzman and Dyer.
With time running out the visitors almost snatched a winner but Vorm sharply held Emmanuel Mayuka's effort.
- Sports & Recreation
- Adam Lallana
- Michel Vorm
- Maya Yoshida
- Mauricio Pochettino